Lawn care business license: what each state requires for mowing, landscaping, spraying and irrigation

Published November 10, 2026 · Rules checked November 10, 2026

• Free to read, nothing to download. The 50-state table below is the tool.
• Deepsel is our product: free estimate, invoice and scheduling software for contractors (scheduling, recurring visits, quotes, invoicing, card payments). The section before the FAQ says where it fits and where it doesn't.
• Not legal advice. Every row links to the agency page or statute it comes from, and cities and counties add their own rules. Call the agency before you bet a job on my reading.

No state we checked licenses mowing. Nearly every state licenses spraying. Cutting grass for pay needs the same paperwork as any small business: a city or county business license, a sales tax permit where lawn care is taxable, and an entity filing if you form an LLC.^1,2 Louisiana, Mississippi, Nevada and Oregon state in writing that mowing and routine yard maintenance don't need their landscape license.^24,30,34,43 The license that catches new owners is the pesticide license. Weed killer is a pesticide, and applying any pesticide to a customer's lawn for pay takes a license from the state agriculture department in nearly every state, usually a license for the business plus a certified applicator.^49,16,35 Then a dozen or so states license landscape construction (planting, hardscape, grading) or irrigation, often only above a dollar amount per job.

Owners get this wrong in both directions. One lawn owner planning to add weed control asked on r/LawnCarePros: "Everything I read says you need a license for pesticide but doesn’t mention herbicide. Am I missing something?" The answer underneath: "An herbicide is a type of pesticide because a weed is considered a pest."⁵ A Georgia answer in r/landscaping got the category right: "For turf you need category 24."^5,16 Below is the rule set for all 50 states and DC as the agencies publish it, read on November 10, 2026, with a source for every row.

The three layers of lawn care licensing

Every lawn or landscape business sits on some mix of three layers. Only the first one applies to everybody.

Quick answers by service

• Mowing, edging, blowing, hand weeding. No state license that I found. City or county business license and insurance.
• Spraying weeds, grubs, fungus, or weed and feed. A state pesticide license almost everywhere. Kentucky's turf category names "impregnated fertilizer" (weed and feed) outright, and Florida's limited landscape maintenance certificate doesn't allow weed and feed on turf at all.^23,15
• Fertilizer only. Depends on the state. Texas needs no license for it; Maryland, New Jersey, Virginia, Florida, Minnesota and Indiana do license or certify it, and Delaware certifies commercial nutrient handlers.^{49,26,36,52,15,29,20,13}
• Planting, sod, beds, hardscape, grading. A landscape or contractor license in roughly a third of states, often only above a dollar amount: $1,000 in California and Arizona, $30,000 per site in North Carolina, $25,000 in Tennessee.^10,8,39,48
• Sprinkler systems. A separate irrigation license in Texas, New Jersey, North Carolina, Louisiana, Connecticut, Rhode Island and New Mexico, registration in Illinois, and a contractor classification in several more.^{49,36,39,24,12,45,37,19}
• Tree work. Spraying trees falls in the ornamental pesticide category. Pruning or removing tall trees has its own license in a few states, such as Maryland's tree expert license and Hawaii's C-27b.^26,17

Lawn care and landscaping license requirements by state

Read across a row for your state. "None found" means the state agency pages and statutes I read don't license that work at the state level; your city or county still might. Where a page didn't settle the question, the cell says who to call. Each row's number links to its sources at the bottom of the page.

Sources: one numbered entry per state at the bottom of the page, each with the agency page or statute and the words it uses. Rules change; most agencies renew licenses yearly and revise fees with them.

How the pesticide license works

The names change from state to state, but the shape is the same nearly everywhere. Three pieces:

1. A certified applicator. A person passes a core exam and a category exam. The category for lawns is usually "ornamental and turf": 3A and 3B in New York, New Jersey, Kansas and Vermont, 24 in Georgia, 3OT in Iowa, E in Minnesota, L in North Carolina, 206 and 207 in Colorado.^{38,36,22,51,16,21,29,39,11} Some states want experience first: New Mexico asks for two years of applying pesticides, or college credits plus one year.³⁷
2. A business license. Most states license the company separately and won't let a certified person spray for hire without one. Michigan: certification alone "does not allow you to legally operate a business to apply pesticides for hire." Oklahoma calls the applicator's card "not a license to do pesticide work."^28,42 A few states put both in one credential, such as Washington's "joint company-personal license."⁵³
3. Insurance or a bond on file. The minimums run from Louisiana's $25,000 to Tennessee's $250,000 per incident with a $10,000 surety bond. West Virginia asks for $300,000 bodily injury and $100,000 property damage plus workers comp.^24,48,54

Employees who spray but aren't certified usually register as technicians and work under the certified person; Kansas, Virginia and Oklahoma all use that model.^22,52,42

Exemptions are narrow

Nevada has the clearest one: a gardener who uses hand-powered equipment to apply low-toxicity products (EPA class III or IV) "as an incidental part of" lawn and garden care, and doesn't advertise pest control, is exempt from the license.³⁴ California splits the difference with a cheaper Maintenance Gardener Pest Control Business license for gardeners who spray occasionally.¹⁰ Florida's Limited Commercial Landscape Maintenance certificate lets crews treat beds and ornamentals, never turf.¹⁵ And "I don't charge for it" doesn't help. Mississippi's FAQ answers a mowing company that sprays herbicide for free: "Yes. If you are applying herbicides to control weeds on property that is not owned by you, you must be licensed."³⁰ New Hampshire's rule applies "regardless of whether the applicator gets paid" and covers "over the counter homeowner type pesticides."³⁵

Two states stand out the other way. Wyoming's agriculture department ties its commercial applicator license to restricted-use pesticides, and Hawaii's pesticide branch page doesn't say which jobs need certification, so ask both before you assume.^56,17

Fertilizer licenses

Fertilizer without weed control is a separate question, and the states don't agree. Texas: "Applicators who apply only fertilizer do not need to be licensed by TDA."⁴⁹ Others license it:

• Florida: "Any person making commercial fertilizer applications to an urban landscape must be certified by FDACS," after six hours of best management practices training.¹⁵
• Maryland: a professional fertilizer applicator certificate and a fertilizer business license, under different rules from the pesticide license (Maryland pesticide business license).²⁶
• Minnesota: "Any person who custom applies fertilizer (for hire) ... must obtain a fertilizer license."²⁹
• New Jersey: no professional fertilizer applicator may fertilize turf without the certification, or training and direct supervision by a certified applicator.³⁶
• Virginia: certification for contractor-applicators applying fertilizer to non-agricultural land.⁵²
• Indiana: the pesticide business license covers fertilizer for hire, and turf applicators pass the 3b exam.²⁰
• Delaware: nutrient management certification for anyone who "Applies nutrients to land as part of a commercial business."¹³

Some of these states also limit when you can fertilize. New Jersey's law bars professionals from fertilizing turf before March 1 or after December 1.³⁶ How to price fertilizer and weed control rounds is in lawn care pricing.

States that license landscape work

The landscape license, where one exists, is about building things, not maintaining them. Oregon's board lists what's exempt: "Mowing, edging, small shrubs and tree pruning, weeding, refreshing bark mulch, adjusing [sic] sprinkler heads for coverage, programming irrigation controllers."⁴³ Louisiana, Mississippi and Nevada say the same about yard work, mowing and lawn maintenance.^24,30,34 The lines that matter:

Massachusetts goes the other way: a contractor who works only in landscaping is exempt from its home improvement registration.²⁷ Alaska registers specialty contractors and lists a Landscaping Contractor trade.⁷

Irrigation licenses

Sprinkler work is where a lawn company most often crosses into a licensed trade without noticing. Texas is the strictest: "A person may not sell, design, install, maintain, alter, repair, service or inspect an irrigation system ... unless the person is licensed by the TCEQ."⁴⁹ Louisiana covers anyone who will "construct, install, connect, repair, maintain, improve or alter any portion of a landscape irrigation system."²⁴ New Jersey wants a certified landscape irrigation contractor on staff and a business permit, and says its home improvement registration "does NOT apply to this work."³⁶

Elsewhere it's a contractor classification (Arizona, California, Hawaii, Nevada, Oregon, Tennessee, Utah, Virginia), a plumbing-side license (Connecticut's J-3, New Mexico's MS-6, Rhode Island's master irrigator), or a registration (Illinois, and Iowa's contractor registration).^{12,37,45,19,21} Even in Oregon, where mowing needs nothing, repairing a sprinkler system needs the landscape license; adjusting heads and programming controllers doesn't.⁴³ What irrigation work pays, and North Carolina's rules in full, are in irrigation pricing.

Local business license and sales tax

The SBA's summary fits lawn care well: "The licenses and permits you need from the state, county, or city will depend on your business activities and business location ... You may also need licenses from your county or city."¹ In practice that means a business license or business tax receipt from the city where you're based, and sometimes from each city you work in. Call the clerk's office in your home city first.

Sales tax is the part people skip. Texas taxes lawn care: "If you do landscaping or lawn or plant care, you should be collecting sales and use taxes," and its list includes "Pruning, bracing, spraying, fertilizing and watering plants."² Pennsylvania says landscapers "may need to collect sales tax based on the specific services they provide."³ Rules differ by state and by service, so check your state revenue department's page for landscaping services before you send the first invoice, because back taxes on a season of mowing come out of your margin, not the customer's.

Insurance

Mowing needs no state license, but a customer with a broken window or a scorched lawn will want to know you're insured, and commercial clients often ask for a certificate before you start. General liability comes first; add commercial auto for the truck and trailer, and workers comp once you hire. What each costs and what can wait is in contractor insurance.

The pesticide license often sets its own minimum, and the agency wants the certificate on file: Iowa asks for $100,000 each of property damage and public liability coverage, Louisiana $25,000, Tennessee $250,000 per incident and $500,000 aggregate.^21,24,48 Ask your agent, in writing, whether the policy covers pesticide application and drift. Some general liability policies carry a pollution exclusion, and you want the answer on paper before a claim.

An LLC is not a license

Forming an LLC gives you a legal structure and some separation between business and personal debts. It doesn't license you to do anything. The SBA lists registering your business and applying for licenses as separate steps.¹ Some licenses ask for the entity papers as part of the application: Arizona's pest management business license wants the trade name certificate and "articles of organization or incorporation" along with the fee and proof of financial security.⁸ So file the LLC, then get the business license, then the trade and chemical licenses on top.

What happens if you spray without a license

Florida spells it out. "It is unlawful for a person, partnership, firm, corporation, or other business entity not licensed by the department to practice pest control." The department can issue a cease and desist order, sue in circuit court, and fine you "not less than twice the cost of a pest control business license" (the license is $300) and up to $10,000 a violation.^4,15 Utah lists penalties of "up to $1,000 per violation."⁵⁰ Unlicensed contracting has its own costs: in Nevada the first offense is a misdemeanor with a fine of up to $1,000.³⁴

The fine is rarely the expensive part. A customer's dead shrubs or a neighbor's garden hit by drift is where the money goes, and the first question in that dispute is whether you were licensed to spray. Ask your insurer now, not after the claim, whether unlicensed application is covered.

A checklist for a new lawn care company

1. Form the business (LLC or sole proprietorship) and get an EIN.
2. Get the city or county business license where you're based.
3. Register for sales tax if your state taxes lawn or landscape services.^2,3
4. Buy general liability before the first job (contractor insurance).
5. Find your state in the table above. If you'll spray anything, start the pesticide license now; exams book up before spring, and some states want experience first.
6. If you'll fertilize for hire in Florida, Maryland, Minnesota, New Jersey, Virginia, Indiana or Delaware, add the fertilizer certificate.
7. If you'll plant, build or install sprinklers, check the landscape and irrigation columns and the dollar lines.
8. Put the license numbers on your quotes, invoices and service agreement once you have them.

More for new lawn and landscape companies

• Lawn care pricing: what owners charge per cut, per acre and per application, and the season price.
• Lawn care and landscaping contract template: seasonal scope, skipped visits and monthly billing.
• Landscaping estimate template and landscaping invoice template.
• Snow removal pricing and the snow removal contract template, for the winter months.
• Contractor insurance: what to buy first and what it costs.
• Maryland pesticide business license: one state's spraying and fertilizer rules in full, with a 30-day checklist.
• Free lawn care software, nine free plans compared from the vendors' own pages, and field service software for small business.
• Pest control software, if spraying becomes a bigger share of the work.

Where Deepsel fits

Deepsel is the field service software I build, and it doesn't know your state's licensing rules. It won't tell you which category to test for, file your renewal, or keep the state-format pesticide application record; there's no chemical application log or route optimization in it. What it does: a recurring job series for route-style work, so the weekly mowing route and an eight-round treatment program sit on the schedule without retyping; quotes and invoices with card payments; and the shop-wide quote terms and invoice footer you set once, copied onto every new estimate and invoice, so your business license, pesticide license and irrigation license numbers go on every document. Checklists filled in at each visit can hold text and number items, stamped with who answered and when, so a crew can note the product, rate and wind speed on the visit; check that your checklist covers every field your state's record rule lists. Free covers 30 estimates and 30 invoices a month for your whole team; Pro is $29 a month with no caps and adds service plans for annual programs (pricing).

Frequently asked questions

Do I need a license to start a lawn care business?

For mowing alone, you usually need only the general registrations every business needs: the city or county business license, a sales tax permit where lawn care is taxable, and an entity filing if you form an LLC. No state we checked licenses mowing itself, and Louisiana, Mississippi, Nevada and Oregon say so in writing. The license that catches new owners is the pesticide license: spraying any weed or bug killer on a customer's lawn for pay needs one from the state agriculture department in nearly every state.

Do I need a license to spray weed killer on customers' lawns?

Almost certainly. A herbicide is a pesticide, and states license pesticide application for hire. Texas puts it plainly: anyone who applies any pesticide, general-use included, to lawns, ornamentals or weeds for hire must be licensed by the Texas Department of Agriculture. Most states also want a business-level license on top of the applicator's own, and some cover weed and feed by name (Kentucky's category 3 includes impregnated fertilizer). Mississippi requires the license even when a mowing company doesn't charge for the spraying.

Do I need a license to fertilize lawns?

It depends on the state. Texas says applicators who apply only fertilizer don't need a TDA license. Maryland, New Jersey, Virginia, Florida, Minnesota and Indiana do license or certify people who fertilize lawns for hire, and Delaware certifies anyone who applies nutrients as part of a commercial business. Weed and feed contains a herbicide, so it counts as a pesticide application.

Which states require a landscaping license?

States with a landscape license or a contractor classification that covers landscape construction include Alabama, Arizona (hardscape and irrigation), California (C-27 from $1,000), Hawaii (C-27), Louisiana and Mississippi (landscape horticulturist), Nevada (C-10), North Carolina (from $30,000 a site), Oregon, Tennessee (from $25,000), Utah (S330) and Virginia (landscape service contracting over $1,000). Connecticut, Maryland, New Jersey and Pennsylvania cover landscaping under their home improvement registrations; Massachusetts exempts it.

Is an LLC the same as a business license?

No. An LLC is a legal structure you file with the secretary of state. It doesn't license you to do anything. You still need the city or county business license, any trade license your state requires, and the pesticide license before you spray. Some licenses even ask for the LLC paperwork as part of the application, which shows they're two different things.

What happens if I spray without a license?

It depends on the state, but the penalties are real. In Florida, unlicensed pest control is unlawful and the state can order you to stop, sue you, and fine you at least twice the $300 business license fee and up to $10,000 a violation. Utah lists penalties of up to $1,000 per violation. And a damage claim from a sprayed flower bed or a drifted herbicide lands on you, so ask your insurer in writing whether your policy covers spraying.

Sources

Agency pages and statutes, each read on November 10, 2026. Sources 1 to 5 support the general sections; the rest are one per state, in table order.

1. U.S. Small Business Administration, "Apply for licenses and permits": "The licenses and permits you need from the state, county, or city will depend on your business activities and business location ... You may also need licenses from your county or city"; registering the business and applying for licenses are separate steps in the SBA's launch guide. sba.gov, retrieved November 10, 2026.
2. Texas Comptroller of Public Accounts, "Landscaping and Lawn Care Services" (publication 94-112): "If you do landscaping or lawn or plant care, you should be collecting sales and use taxes," with "Pruning, bracing, spraying, fertilizing and watering plants" on the list of taxable services. comptroller.texas.gov, retrieved November 10, 2026.
3. Pennsylvania Business One-Stop Hub, "Business Licensing Reference Guides - Construction Contractors/Landscapers": "Landscapers may need to collect sales tax based on the specific services they provide" (61 Pa. Code 55.6). hub.business.pa.gov, retrieved November 10, 2026.
4. Florida Statutes 482.165, "Unlicensed practice of pest control": "It is unlawful for a person, partnership, firm, corporation, or other business entity not licensed by the department to practice pest control"; cease and desist orders, civil suits, and a fine "not less than twice the cost of a pest control business license, but not more than a fine in the Class III category," leg.state.fl.us; Florida Statutes 570.971(1)(c): "For each violation in the Class III category, a fine not to exceed $10,000 may be imposed," leg.state.fl.us. Both retrieved November 10, 2026.
5. Reddit comments quoted above, each checked live through Reddit's API on November 10, 2026: r/LawnCarePros, "Wanting to start spraying weeds for my clients," May 1, 2025, mq2qhp2 and mq3h1pb; r/landscaping, "How to get license to apply weed killer," January 28, 2025, m9ky8bz.
6. Alabama. Alabama Department of Agriculture and Industries, "Professional Services": "The Horticulture Professional Services Licenses are issued to businesses that engage in and solicit for Landscape Design (LD), Tree Surgery (TS), Setting of Landscape Plants (SLP) and Ornamental & Turf Pest Control (OTPS) and have a certified operator"; $175 a year, October 1 to September 30. agi.alabama.gov, retrieved November 10, 2026.
7. Alaska. Alaska Division of Corporations, Business and Professional Licensing, "Specialty Contractor Trades List (12 AAC 21.200 - .570)": "(17) Landscaping Contractor (12 AAC 21.370)," who "grades, fills, and levels ground ... performs hydro-seeding; or ... installs grass, shrubbery, trees," commerce.alaska.gov (PDF); Alaska DEC Pesticide Control Program, "Applicator Categories" (Turf and Ornamental: "Groundskeepers who use weed and lawn feed products on a client's lawn"), dec.alaska.gov, and "Becoming a Certified Applicator" (pesticides on property other than your own is "custom, commercial, or contract" application and "requires certification"), dec.alaska.gov. All retrieved November 10, 2026.
8. Arizona. Arizona Registrar of Contractors, "License Classifications" (R-21 Hardscaping and Irrigation Systems, item 10, "Irrigation systems, including any necessary ... connection to potable water lines, backflow prevention devices"; "existing CR-21 Landscaping and Irrigation Systems licenses will be reclassified as CR-21 Hardscaping and Irrigation Systems"), roc.az.gov; A.R.S. 32-1121(A)(14) (aggregate price "less than $1,000," "casual or minor nature," not where "the performance of the work requires a local building permit"), azleg.gov; Arizona Department of Agriculture, "Pest Management FAQs" (categories incl. "Ornamental and turf pest control"; "anyone engaging in, offering to engage in, advertising for, soliciting, or performing pest management needs a business license"; $185 fee with "a copy of the trade name certificate, articles of organization or incorporation, and proof of structural financial security"), agriculture.az.gov. All retrieved November 10, 2026.
9. Arkansas. Arkansas Department of Labor and Licensing, "Apply for Contractors License/Registration" ("A home improvement license is needed to do specialty work on a single-family residence, if the project is more than $2,000"; commercial "$50,000 or more"), labor.arkansas.gov; Residential Contractors Licensing Law, revised April 2026 (specialty "(24) Landscaping, irrigation, lawn sprinklers, and streams"), labor.arkansas.gov (PDF); Arkansas Department of Agriculture, "Pest Control Program" (January 2026: "A License Holder license is required for a business to provide pest control services"; "B. Ornamental Pest Control 4. Tree and Turf Pest Control 5. Weed Control"), media.ark.org (PDF). All retrieved November 10, 2026.
10. California. CSLB, "C-27 - Landscaping Contractor" ("constructs, maintains, repairs, installs, or subcontracts the development of landscape systems"), cslb.ca.gov; Business and Professions Code 7048 (exempt if "less than one thousand dollars ($1,000)" and no building permit), leginfo.legislature.ca.gov; CSLB, "Gardener or Landscaping Contractor - What's the Difference?" ("Gardeners who routinely maintain yards (mowing, weeding, shrub trimming) generally are not required to hold a state license"; irrigation systems, plants and sod on its license list; the sheet predates the $1,000 limit), cslb.ca.gov (PDF); DPR, "Maintenance Gardener Pest Control Business License Packet" (for "a maintenance gardener who occasionally engages in pest control in support of your primary gardening business for hire"; qualified person with QAC "subcategory Q-Maintenance Gardener or category B-Landscape Maintenance"; county registration), cdpr.ca.gov (PDF). All retrieved November 10, 2026.
11. Colorado. Colorado DORA, "Home and Repair" ("Not all occupations are licensed, such as roofers and general contractors"), dora.colorado.gov; Colorado Department of Agriculture, "Commercial Applicators" ("Any person making pesticide applications “for hire” or any business selling services that include the application of pesticides must license as a commercial pesticide applicator business"; a qualified supervisor "licensed in each pest management category"), ag.colorado.gov, and "Pesticide License Categories" (206 Turf Pest Control, 207 Ornamental Pest Control), ag.colorado.gov. All retrieved November 10, 2026.
12. Connecticut. Conn. Gen. Stat. 20-419 (home improvement includes "patios, landscaping, fences" where the price "exceeds two hundred dollars"; contractor excludes a person whose contracts do "not exceed one thousand dollars during any period of twelve consecutive months"), cga.ct.gov; DEEP, "Ornamental and Turf Certification Information" ("All persons using pesticides professionally in Connecticut must possess an up-to-date certificate"), portal.ct.gov; DEEP, "Commercial Pesticide Applicator Certification Category Descriptions" ("3A Ornamental & Turf"), portal.ct.gov (PDF); DEEP, "Pesticide Business Registration" ("The business registration is required in addition to individual applicator certification"), portal.ct.gov; DCP, "Irrigation Licenses and Scope of Work" ("J-3 LIMITED LAWN SPRINKLER CONTRACTOR ... permits the installation, repair, replacement, alteration or maintenance of lawn sprinklers systems"), portal.ct.gov. All retrieved November 10, 2026.
13. Delaware. Delaware Division of Revenue, "Business Licenses FAQs" ("Any person or entity conducting a trade or business in the State of Delaware is required to obtain a Delaware business license"), revenue.delaware.gov; Delaware Department of Agriculture, "Pesticide Business Licenses" ("A pesticide business license is required to engage in the business of applying pesticides to the property of another within this state for compensation"; "03 | Ornamental and Turf Pest Control"), agriculture.delaware.gov; Delaware Department of Agriculture, Nutrient Management "Certification and Education" (certification for anyone who "Applies nutrients to land as part of a commercial business"; "Commercial Nutrient Handler"), agriculture.delaware.gov. All retrieved November 10, 2026.
14. District of Columbia. DC DLCP, "Contractor and Construction Services" (Home Improvement Contractor license documents, including a $25,000 surety bond; the Home Improvement Contractor page itself returned "Access denied"), dlcp.dc.gov; DOEE, "Preliminary Application for Certification as a Pesticide Applicator" ("3. Ornamental and Turf Pest Control A. Exterior Ornamental Plants B. Lawns and Turf"), doee.dc.gov (PDF); DOEE, "Pesticide Licensing" (Basic Business License forms after approval; proof of insurance), doee.dc.gov. All retrieved November 10, 2026.
15. Florida. FDACS, "Pest Control Licensing and Certification" (certified operator in "Lawn and Ornamental Pest Control"; business license fee $300; LCLM "allows commercial landscape maintenance personnel to make pesticide applications ... to ornamental plants and plant beds only. It does not allow ... weed control and/or weed and feed products ... to any turf areas"; limited certifications don't allow "the operation of a commercial pest control business"), fdacs.gov; FDACS, "Do commercial fertilizer applicators need to be licensed to apply fertilizers?" ("Any person making commercial fertilizer applications to an urban landscape must be certified by FDACS"), fdacs.gov; Florida Statutes 489.105 (plumbing contractor scope includes "irrigation systems"), leg.state.fl.us. All retrieved November 10, 2026.
16. Georgia. Georgia Department of Agriculture, "Pesticide Contractors" ("any person engaged in the business of applying pesticides to the lands of another ... must first be issued a pesticide contractor's license"; examples "Lawn Care/Maintenance Company ... Landscape Contractor"; "if you perform applications as part of a maintenance contract, you are subject to this requirement"), agr.georgia.gov; "Pesticide Contractor Licenses" ($55), agr.georgia.gov; "Pesticide Applicator License Categories" ("24 Ornamental and Turf"), agr.georgia.gov. All retrieved November 10, 2026.
17. Hawaii. Hawaii DCCA, "Description of Contractor License Classifications" ("C-27 Landscaping contractor ... C-27b Tree trimming and removal contractor"; "C-37b irrigation and lawn sprinkler systems"), cca.hawaii.gov (PDF); HRS 444-2(4) (exempt where "the aggregate contract price for labor and materials is not more than $1,500," not where a building permit is required), capitol.hawaii.gov; HDOA, "Pesticide Applicator Certification / Recertification" (commercial certification is for "Pesticide applications on any property or for any purpose other than that listed for private applicators"), dab.hawaii.gov; University of Hawaii CTAHR, "Pesticide Applicators Certification Categories" ("Commercial 3 – Turf and Ornamental"), ctahr.hawaii.edu. All retrieved November 10, 2026.
18. Idaho. Idaho Code 54-5203 ("Construction" means building, altering, repairing ... "any building, highway, road, bridge, or other structure, project, development or improvement to real property"), legislature.idaho.gov, and 54-5205(f) (exempt below "two thousand dollars ($2,000)"), legislature.idaho.gov; ISDA, "Changes to IDAPA 02.03.03 in 2024" ("Ornamental Pest (OP) For professional applicators who use or supervise the use of pesticides to control pests in the maintenance and production of ornamental plants and turf"), agri.idaho.gov (PDF); ISDA licensing application 2026-27 (Professional $300; "all professional applicators must provide proof of financial responsibility"), agri.idaho.gov (PDF). All retrieved November 10, 2026.
19. Illinois. Illinois Department of Agriculture, "Certification and Licensing" (categories include "ornamental" and "turf"; "Each organization must have at least one person licensed"; "The fee for a 3-year commercial applicator’s license is $300 ... commercial applicators must provide a certificate of insurance"), agr.illinois.gov; 77 Ill. Adm. Code 892.20 ("each irrigation contractor doing business in Illinois shall register annually with the Department"), ilga.gov. All retrieved November 10, 2026.
20. Indiana. Office of Indiana State Chemist, "Licensing Requirements for Pesticide and Fertilizer Applications" ("Any business applying RUPs, GUPs, or fertilizer materials to another person’s property for hire must be licensed. The business must maintain liability insurance"; "For turf applications, individuals must pass the Category 3b written exam"), oisc.purdue.edu; 355 IAC 4-1-3 ("Category 3a. Ornamental pest management"; "Category 3b. Turf management"), law.cornell.edu. All retrieved November 10, 2026.
21. Iowa. Iowa Department of Inspections, Appeals, and Licensing, "Contractor Registration" (register "if they earn at least $2,000 a year from construction"), dial.iowa.gov; Iowa Admin. Code 871-23.82 (construction list includes "Lawn sprinkler system installation—contractors"), legis.iowa.gov (PDF); Iowa Department of Agriculture and Land Stewardship, "Requirement Summary for Iowa Commercial Pesticide Applicator Licenses and Certifications," updated April 2013 ("A person engaged in the business of applying any pesticide to the lands or property of another is required to be licensed as a commercial pesticide applicator"; "3OT Ornamental and Turf Pest Control 3O Ornamental Pest Control 3T Turf Pest Control"; coverage of "at least $100,000 property damage and public liability, each separately"), iowaagriculture.gov (PDF); current program page, iowaagriculture.gov. All retrieved November 10, 2026.
22. Kansas. Kansas Department of Agriculture, "Pesticide Business" ("The Kansas Pesticide Law requires any business to become licensed to ... perform any service for the control of a pest on the property of another or apply a pesticide to the property of another"; "ornamental (3A), turf (3B), interior landscape (3C)"), agriculture.ks.gov, retrieved November 10, 2026.
23. Kentucky. KRS 217B.070(1) ("No person shall engage in the business of applying pesticides to the lands of another within this state at any time without a pesticide operator's license"; $100), apps.legislature.ky.gov; 302 KAR 26:020 ("(3) Ornamental, turf and lawn care. This category shall include persons applying pesticides or impregnated fertilizer to control insects, weeds, and diseases in turf, lawns"), apps.legislature.ky.gov; Kentucky Division of Plumbing, "Homeowner's Informational Packet for an Irrigation System" (irrigation permit; water service to the backflow device), dhbc.ky.gov (PDF). All retrieved November 10, 2026.
24. Louisiana. LDAF, "Nursery and landscape licensing" ("Recommend and execute beautification through plants | Landscape Horticulturalist License"; "Work on landscape irrigation systems | Landscape Irrigation Contractor License"; "Yard work (cutting lawns, edging, and hand-weeding beds) is not regulated by our department and does not require a license"; "If you construct, install, connect, repair, maintain, improve or alter any portion of a landscape irrigation system ... you need a Landscape Irrigation Contractor License"; $125), ldaf.la.gov; LDAF, "Pesticide licensing" ("Commercial pesticide application companies that apply pesticide by ground are required to have a Ground Owner Operator License"; $200; insurance "not less than $25,000"; employ "at least one certified commercial pesticide applicator"), ldaf.la.gov; LAC Title 7, pesticide rules ("Ornamental and Turf Pest Control (category 3)"), doa.louisiana.gov (PDF). All retrieved November 10, 2026.
25. Maine. Maine Board of Pesticides Control, "Licensing" ("A commercial license is required ... Use of any pesticide as a service for which compensation is received. Examples include lawn and landscape care"), maine.gov; "Commercial Applicators" ("3A Outdoor Ornamentals | 3B Turf"; master certification "required for one individual within each company"), maine.gov; 22 M.R.S. 1471-D ("No spray contracting firm may use or supervise the use of any pesticide within the State without prior certification from the board"), legislature.maine.gov. All retrieved November 10, 2026.
26. Maryland. MHIC, FAQ ("While landscape contractors are licensed by MHIC, the Maryland Department of Natural Resources is responsible for licensing tree experts"), dllr.state.md.us; MDA, "Pesticide Business Licensing & Certification" (pest control "includes lawn care companies using weed and feed or organic pesticides, landscapers using Roundup ... A pesticide business license is required"), mda.maryland.gov; COMAR 15.20.10 (professional fertilizer applicator certificate and fertilizer business license), regs.maryland.gov. All retrieved November 10, 2026.
27. Massachusetts. 201 CMR 18 (exempts a contractor "who works exclusively in any of the following home improvement areas: 1. landscaping"), mass.gov; MDAR, "CY 2026 Pesticide Examination and License Information" ("If you intend to do pesticide work using general use pesticides for hire ... you must obtain the Applicator License ... usually obtained by individuals working in Exterminating, Lawn Care, Landscape and Ornamental Tree Care"; restricted use for hire needs a Commercial Certification; "Shade Trees & Ornamentals (cat. 36)," "Turf (cat. 37)"; insurance attestation), mass.gov. All retrieved November 10, 2026.
28. Michigan. MDARD, "Pesticide Application Businesses" ("In addition to becoming certified/registered pesticide applicator, applicators must obtain a pesticide application business license to apply pesticides for hire"; certification or registration "does not allow you to legally operate a business to apply pesticides for hire"), michigan.gov; MDARD, "Pesticide Application Certification Details & FAQ" ("3A (turfgrass), 3B (ornamental)"), michigan.gov. All retrieved November 10, 2026.
29. Minnesota. Minn. Stat. 326B.802 subd. 15 (eight special skills, among them "(a) Excavation ... (3) grading; and (4) site grading" and "(b) Masonry and concrete"), revisor.mn.gov; MDA, "Pesticide Applicator License Types" ("Commercial pesticide applicator licenses are for anyone who applies any pesticide “for hire.” ... Applications of fertilizer require a fertilizer license"; "E | Turf & Ornamentals"), mda.state.mn.us; MDA, "Fertilizer Licensing" ("Any person who custom applies fertilizer (for hire) ... must obtain a fertilizer license from MDA. This requirement pertains to fertilizer applications to lawns"), mda.state.mn.us. All retrieved November 10, 2026.
30. Mississippi. MDAC, "Landscape Horticulturist Licensing" ("required for persons engaged in landscaping services and the setting or replacement of any plants"; "not required for irrigation installation and lawn maintenance (grass mowing, fertilizing, etc.). There is no cost"; $1,000 surety bond; lawn maintenance firms "shall not have the words landscape or landscaping in their business name"), mdac.ms.gov; MDAC, "Regulation of Professional Services Frequently Asked Questions" ("Anyone who receives fees for pest control and/or weed control services in Mississippi must be licensed"; a mowing company using herbicides without charging: "Yes ... you must be licensed"), mdac.ms.gov; MDAC, "Weed and Pest Control License and Permit" (Company License; HCPL, HCWL; bonds of $5,000 for pest and $2,500 for weed control), mdac.ms.gov. All retrieved November 10, 2026.
31. Missouri. Missouri Department of Agriculture, "Pesticide Control" ("Certified Commercial Applicators can use ... any pesticide, whether classified for restricted use or for general use, while engaged in the business of using pesticides on the lands of another ... in exchange for a fee"; $65; insurance), agriculture.mo.gov; University of Missouri Extension, "Ornamental and Turf Pest Control (Category 3)," extension.missouri.edu. Both retrieved November 10, 2026.
32. Montana. Montana Department of Labor and Industry, "Montana Construction Contractor License (CCL) Program" ("Effective January 1, 2026 All construction contractors in the state of Montana are required to be licensed"; "All construction contractors with employees must register"), boards.bsd.dli.mt.gov, and notice to construction contractors on HB 239 ("Independent contractors that do not have employees are among those exempt"), erd.dli.mt.gov (PDF); Montana Department of Agriculture, "Commercial Applicators" ("Any person in the business of applying pesticides must obtain an applicator's license"; $85; liability requirements; "(3) Ornamental and Turf Pest Control classification"), agr.mt.gov. Both retrieved November 10, 2026.
33. Nebraska. Nebraska Department of Labor, "Who Needs to Register" ("All contractors doing business in Nebraska must register"), dol.nebraska.gov; Neb. Rev. Stat. 48-2103 (contractor: construction of "every other type of structure, project, development, or improvement within the definition of real property"), nebraskalegislature.gov; Nebraska Department of Agriculture, "Pesticide Applicator Certification and Licensing" ("people who apply general-use structural or lawn care pesticides FOR HIRE are required to be certified and licensed as commercial applicators"), nda.nebraska.gov, and "Applicator Certification Categories" ("04 - Ornamental and Turf Pest Control"), nda.nebraska.gov. All retrieved November 10, 2026.
34. Nevada. Nevada State Contractors Board, "Choosing a Landscaper" (licensed contractors "are Required to Perform: Installation of rocks, sand or gravel ... landscape retaining walls not exceeding three feet; Installation of landscape irrigation; Planting trees, shrubs or other vegetation; and Laying sod or hydroseeding"; "are Not Needed for: Mowing/edging of lawns; Cleaning up/hauling off debris; Removal and trimming of trees and shrubs; or Thatching of lawns"), nvcontractorsboard.com (PDF); NAC 624.280 (C-10 holder "may grade and prepare plots of land ... plant and maintain gardens, lawns, shrubs ... construct systems of drainage and landscape irrigation"), leg.state.nv.us; Nevada State Contractors Board, "General Requirements" (exempt: "work to repair or maintain property the value of which is less than $1,000 ... unless ... A building permit is required"; unlicensed contracting first offense "a misdemeanor ... fine of not more than $1,000"), nvcontractorsboard.com; NRS 555.280 (applicator license and "business license" to operate "for hire or for profit, as a pest control business") and NRS 555.277(2) (gardener using "hand-powered equipment" and toxicity class III or IV products "as an incidental part of" lawn care, without advertising), leg.state.nv.us; Nevada Department of Agriculture, "Pest Control Applicator Fields Categories" ("(C1) Limited landscape"; "(C6) Weeds"), agri.nv.gov. All retrieved November 10, 2026.
35. New Hampshire. New Hampshire Department of Agriculture, Markets & Food, "Commercial Applicator Licensing (For Hire)" (May 2025: "anyone applying pesticides on a commercial basis, on the property of another, must be licensed ... regardless of whether the applicator gets paid ... including over the counter homeowner type pesticides"; "Shade and Ornamental Pest Control, Turf Pest Control"; supervisory license and firm registration), mm.nh.gov (PDF), retrieved November 10, 2026.
36. New Jersey. New Jersey Division of Consumer Affairs, "Home Improvement Contractors" (contractors include "those who work on residential driveways, sidewalks, swimming pools, terraces, patios, additions, landscaping, fences"), njconsumeraffairs.gov; NJ DCA, "Landscape Irrigation Contractor Certification" ("A business that intends to perform landscape irrigation work must obtain a business permit ... A home improvement contractor license does NOT apply to this work"), nj.gov; NJDEP, "Commercial Pesticide Applicator" ("If you apply pesticides “for hire” in New Jersey, State law requires that your business obtain a Pesticide Applicator Business License"; "Category 3A – Ornamental Pest Control," "Category 3B – Turf Pest Control"), dep.nj.gov; P.L. 2010, c. 112, sec. 2(c)(1) ("No professional fertilizer applicator may apply fertilizer to turf without first obtaining a fertilizer application certification"), rutgers.edu (PDF). All retrieved November 10, 2026.
37. New Mexico. 14.6.6 NMAC, CID classifications ("MS-6. Lawn sprinklers ... Install, alter, repair, service or maintain potable water sprinkler systems"; GS-29 miscellaneous specialties "on a case-by-case basis"), srca.nm.gov; New Mexico Department of Agriculture, "Commercial Applicators License" ("apply or supervise the application of any pesticide for any purpose on someone else’s property for compensation"; $25,000; $100), nmdeptag.nmsu.edu, and "Certification Categories" ("3A. Ornamental & Turf Pests"; "3B. Ornamental & Turf Weeds"), nmdeptag.nmsu.edu. All retrieved November 10, 2026.
38. New York. NYSDEC, "Business/Agency Pesticide Information" ("A Business Registration is required to offer, advertise, or make pesticide applications for hire"), dec.ny.gov; NYSDEC, "Certification Categories and Credit Requirements" ("3A - Ornamentals, Shade Trees & Turf"; "3B - Turf"), dec.ny.gov. Both retrieved November 10, 2026.
39. North Carolina. NC Landscape Contractors' Licensing Board, "Licensing" (exempt: "Any landscaping work where the price of all contracts ... for a given job site during any consecutive 12-month period is less than thirty thousand dollars ($30,000)"), nclclb.com; N.C. Gen. Stat. 89G-3 (exempt where the jobsite total "is less than two thousand five hundred dollars ($2,500)"), ncleg.gov; NCDA&CS, "Pesticides Licenses" ("026 - Commercial Ground Applicator. This license is required for anyone applying pesticides (non-aerial) for compensation on someone else’s property ... Examples include: Landscapers/Lawn Care"; "L - Ornamental & Turf"), ncagr.gov. All retrieved November 10, 2026.
40. North Dakota. North Dakota Secretary of State, "Contractors" ("building, repairing, altering ... real or personal property, parcels of land"; "When the cost, value, or price of a job exceeds $4,000, the person doing the work must be licensed as a contractor"), sos.nd.gov; N.D. Admin. Code 60-03-01 ("4. Ornamental and turf pest control"; a certified commercial applicator may "supervise the use of a general use pesticide in commercial settings"), ndlegis.gov (PDF); NDDA applicator certification page, ndda.nd.gov. All retrieved November 10, 2026.
41. Ohio. Ohio Department of Agriculture, "Pesticide Businesses" ("You need a Pesticide Business license if you ... are hired to apply any pesticide to someone else's property in Ohio ... At least one Ohio-licensed commercial applicator must be employed"; insurance on file), agri.ohio.gov; ODA, "Commercial Applicator" (required if you "are hired to apply any pesticide to someone else's property"; "Category 6a – General Ornamental Pest Control," "Category 6c – Ornamental Weed Control," "Category 8 – Turf Pest Control"), agri.ohio.gov. Both retrieved November 10, 2026.
42. Oklahoma. ODAFF, "Pesticides" ("This certification card is not a license to do pesticide work; a pesticide business license must be obtained by any certified applicator wishing to do pesticide work ... or must be obtained by his/her employer"), ag.ok.gov; ODAFF, Pesticide License Application, July 2025 ("3A Ornamental & Turf Outdoor"; "Commercial License: $100 per category, not more than $500 total annually"), ag.ok.gov (PDF). Both retrieved November 10, 2026.
43. Oregon. Oregon Landscape Contractors Board, "License Requirements" ("A Landscape Contractors Board (LCB) license is required when performing landscape construction work for compensation"; examples include planting lawns and trees, grading, "Installing or repairing irrigation systems," patios and retaining walls), oregon.gov; LCB, "Maintenance Work FAQ" ("Mowing, edging, small shrubs and tree pruning, weeding, refreshing bark mulch, adjusing sprinkler heads for coverage, programming irrigation controllers"; "Landscape maintenance is not regulated by the State of Oregon"; "$500 (labor and materials) ... per job site, per year"), oregon.gov; ODA, "Explore Licensing Requirements" ("If you have a commercial pesticide applicator license, you must be employed by a business licensed as a commercial pesticide operator"), oregon.gov; ODA license application ("Turf & Ornamental" with Herbicide and Insecticide/Fungicide subcategories), oregon.gov (PDF). All retrieved November 10, 2026.
44. Pennsylvania. Pennsylvania Office of Attorney General, "Frequently Asked Questions" (home improvement includes "landscaping work (other than work performed under the Plant Pest Act)"; exemption for "small contractors (less than $5,000 of work in a calendar year)"), attorneygeneral.gov; Pennsylvania Department of Agriculture, "Pesticide Applicators, Registered Technicians, and Certification Exams" (commercial applicators must "be employed by a company with pesticide business license"), pa.gov; 7 Pa. Code 128.42 ("(6) Ornamental and shade trees"; "(7) Lawn and turf"), pacodeandbulletin.gov. All retrieved November 10, 2026.
45. Rhode Island. 250-RICR-40-15-2 ("Each person engaged in the application of any pesticide, other than a “restricted use” or “state limited use” pesticide, as a commercial applicator shall possess a valid commercial applicator license"; "Category 3A - Shade Tree (Arborist)"; "Category 3B - Custom Grounds ... ornamental shrubs, flowers and turf"), rules.sos.ri.gov; 260-RICR-30-15-9, Licensing of Plumbers, Irrigators and Water System Installers ("Master irrigator"; a journeyperson "shall not be permitted to own or operate a business"), rules.sos.ri.gov. Both retrieved November 10, 2026.
46. South Carolina. Clemson University Department of Pesticide Regulation, "Licensing" (apply "in Categories 3, 5, 6, 7a, 7b, or 8 to another person’s property as part of your job and/or for compensation, you are a Commercial Applicator and must be licensed"; business license for Category 7A), clemson.edu, and "SC Certification Categories" ("Category 3: Ornamental and Turf Pest Control ... Licensing is mandatory in this category"), clemson.edu; SC Contractor's Licensing Board, "Classification Abbreviations and Group Dollar Limitations" (January 2025), llr.sc.gov (PDF). All retrieved November 10, 2026.
47. South Dakota. South Dakota DANR, "Pesticide Applicators and Dealers" ("If you apply pesticides for hire ... you must have a commercial pesticide applicator license"), danr.sd.gov; "Commercial Certification Categories" (September 2024: "4. Ornamental & Turf pest control ... lawns, parks"), danr.sd.gov (PDF). Both retrieved November 10, 2026.
48. Tennessee. Tennessee Board for Licensing Contractors, "Contractor" (license required "for projects of $25,000 or more when acting as a prime contractor"), tn.gov, and "Tennessee Contractor Classification Outline" ("BC-29 Landscaping," "BC-33 Irrigation"), tn.gov; Tennessee Department of Agriculture, "Certification, Licensing and Charters" ("a company providing or offering for sale any custom pesticide application must have a pest control charter"; $200, $10,000 surety bond, $250,000 and $500,000 liability; "Horticulture - Lawn and Turf (HLT) ... residential and commercial lawns and landscapes"; "(C03) Ornamental and Turf Pest Control"), tn.gov. All retrieved November 10, 2026.
49. Texas. Texas Department of Agriculture, "Applying Pesticides to Ornamentals, Trees, Lawns, or Weeds" ("Applicators who want to apply any pesticide (regardless of classification and including general-use) to ornamental plants, trees, lawns, or weeds for hire must be licensed"; "Applicators who apply only fertilizer do not need to be licensed by TDA"; Ag Pest "3A Landscape Maintenance" and "5 Vegetation Management"; SPCS "Lawn and Ornamental" and "Weed Control"), texasagriculture.gov; TCEQ, "Occupational Licenses: Landscape Irrigator, Irrigation Technician, and Irrigation Inspector" ("A person may not sell, design, install, maintain, alter, repair, service or inspect an irrigation system ... unless the person is licensed by the TCEQ"), tceq.texas.gov. Both retrieved November 10, 2026.
50. Utah. Utah Division of Professional Licensing, contractor classifications (March 2026: "S330 Landscape & Recreation Contractor"), commerce.utah.gov (PDF); Utah Admin. Code R156-55a-301 (S330: "Arrangement, and planting of gardens, lawns, shrubs"; "sprinkler systems, and water distribution systems for artificial watering or irrigation ... an S330 may connect the system to the backflow prevention device"; retaining walls), law.cornell.edu; Utah Department of Agriculture and Food, "Commercial Pesticide Applicator License" ("You must obtain a Commercial Pesticide Applicator License"; "You must be employed by a pesticide business with a valid Commercial Pesticide Business License"; "The new Ornamental and Turf Technician Permit does not grant full pesticide applicator privileges"; penalties "up to $1,000 per violation"), ag.utah.gov. All retrieved November 10, 2026.
51. Vermont. Vermont Agency of Agriculture, Food and Markets, "Pesticide Applicator Types & Certification" (commercial applicators are employees of companies doing "landscape, lawn care, tree care ... Using class A, B or C pesticides on the lands or homes ... of others requires commercial applicator certification. The applicator must also be affiliated with a licensed pesticide applicator company"; company $75; "3A Ornamental & Shade Tree Pest Control," "3B Turf Pest Control"), agriculture.vermont.gov, retrieved November 10, 2026.
52. Virginia. 18VAC50-22-30 ("Landscape irrigation contracting" (ISC) for "irrigation sprinkler systems or outdoor sprinkler systems"; "Landscape service contracting" (LSC): "excavation, clearing, grading, construction of retaining walls for landscaping purposes, or placement of landscaping timbers"), law.lis.virginia.gov; Va. Code 54.1-1100 (Class C: a single contract "over $1,000"), law.lis.virginia.gov; VDACS, "Becoming a Certified Pesticide Applicator" ("Commercial Applicators (For Hire) ... Must work for a company with a Pesticide Business License"), vdacs.virginia.gov; VDACS, "Categories for Commercial Applicator Certification" ("3A Ornamental Pest Control," "3B Turf"), vdacs.virginia.gov (PDF); VDACS, "Certified Fertilizer Applicator (CFA) Program" (certification "for all licensees and contractor-applicators ... engaged in the commercial application of fertilizers to non-agricultural lands"), vdacs.virginia.gov. All retrieved November 10, 2026.
53. Washington. RCW 18.27.010 (contractor: construct or improve "any building, highway, road, railroad, excavation or other structure, project, development, or improvement attached to real estate"), app.leg.wa.gov; RCW 18.27.090 (exempt under "five hundred dollars"), app.leg.wa.gov; WSDA, "Pesticide License Types" ("Engaged in the business of applying pesticides to the land or property ... of another ... This is a joint company-personal license"), agr.wa.gov, and "Pesticide License Categories" ("Insect and Disease Control ... Ornamental, turf ... yards, gardens"; "Weed Control ... turf and ornamental situations"), agr.wa.gov. All retrieved November 10, 2026.
54. West Virginia. West Virginia Department of Agriculture, "Licensed Pesticide Application Business" ($60; "Business applying pesticides to the lands of others for hire"; "$300,000 bodily injury/$100,000 property damage/Workers comp"), agriculture.wv.gov; WVDA, "Category Descriptions" ("Category 4. Ornamental and Turf"), agriculture.wv.gov. Both retrieved November 10, 2026.
55. Wisconsin. DATCP, "Commercial Pesticide Application Business License" ("required for any business which makes commercial for-hire applications of pesticides. All applicators employed by the business must also hold an individual commercial applicator license"), datcp.wi.gov; DATCP, "Commercial Pesticide Applicator Certification" (landscape guide: "Turf and Landscape Pest Control (3.0)"; business licensed annually, "includes sole proprietors"), datcp.wi.gov (PDF). Both retrieved November 10, 2026.
56. Wyoming. Wyoming Department of Agriculture, "Pesticide Applicator Training" ("A commercial applicator license applies to any applicator ... who uses or supervises the use of any pesticide which classified for restricted use ... on the property of another person"), agriculture.wy.gov; University of Wyoming Extension, "Wyoming Ornamental and Turf Pest Categories: All 903 Categories" (MP-127.903), wyoextension.org. Both retrieved November 10, 2026.