Mowing doesn’t need a license anywhere. The moment a lawn care business sprays a herbicide, spreads a weed-and-feed, or treats grubs for a customer, it’s applying pesticides for hire, and every state regulates that. It’s the one lawn care service that’s licensed nationwide, and the one that new lawn companies most often get wrong.

The framework is federal: under FIFRA, EPA sets the standards and each state certifies applicators. But states add their own layers: business licenses, technician registrations, fertilizer certifications, posting signs, neighbor notification, and in a few places, local bans on cosmetic pesticides.

This guide covers every state and DC. We name the agency for each state and spell out the rules that go beyond the standard license where states have them. Current as of November 2026.

Quick answer: All 50 states and DC require a license or certification to apply pesticides to lawns for hire, including weed-and-feed and grub control. The usual setup is a business license, a certified applicator in the turf and ornamental category, and registered technicians. On top of that, Florida, Maryland, New Jersey and Virginia certify professional fertilizer applicators, and states like New York, Illinois, Pennsylvania and Wisconsin require posting signs or neighbor notice.

How Lawn Pesticide Licensing Works

Almost every state uses the same three layers, with different names:

Two federal points apply everywhere. Restricted-use pesticides always require a certified applicator (or direct supervision by one). And EPA’s updated applicator certification rule raised the national baseline, including a minimum age of 18 for certified applicators, with states operating under EPA-approved certification plans.

Weed-and-feed is a pesticide. That’s the trap. A company that thinks it’s “just fertilizing” but spreads a product with herbicide or insecticide in it is applying pesticides for hire.

Rules Beyond the Standard License

Every state requires the license. These states add fertilizer certifications, posting, notice or local limits on top:

StateFertilizer RulesPosting, Notice and Local Limits
FloridaUrban landscape fertilizer certification (GI-BMP based); LCLM is plant beds onlySeasonal fertilizer bans in many counties
MarylandLawn care fertilizer certification (Fertilizer Use Act of 2011)Montgomery County cosmetic pesticide limits
New JerseyProfessional fertilizer applicator certification (2011 law)Posting and registered-neighbor notice
VirginiaCertified fertilizer applicator for contractor-applicators—
TexasNo license for fertilizer onlyWeed-and-feed needs a TDA license
New York—Statewide markers; 48-hour notice in opt-in counties
Illinois—Lawn markers; notice to registered neighbors
Pennsylvania—Notify people on the Hypersensitivity Registry
Wisconsin—Posting signs; notification registry
Michigan—Notification registry
Maine—Notification registry; local synthetic pesticide bans
Connecticut—Posting signs; school and day care limits
Minnesota—Warning signs on treated turf
District of Columbia—Product restrictions on certain properties
California—County registration; monthly pesticide use reports
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Fertilizer vs. Pesticides

In most states, applying straight fertilizer for hire doesn’t need a pesticide license. Texas says so explicitly: fertilizer-only applicators don’t need a TDA license. But a growing group of states regulate professional fertilizer application to protect water quality:

Phosphorus restrictions on lawn fertilizer are common too, so check the product rules in your state before you buy in bulk.

State-by-State Breakdown

Every state and DC, with the agency that licenses lawn pesticide applicators and any extra rules. Category names and numbers vary by state, so ask the agency which turf category matches your work.

Alabama License Required

Issuing Agency: Alabama Department of Agriculture and Industries

What you need: You need a commercial applicator certification in the turf and ornamental category (core exam plus category exam), and the business usually needs its own pesticide business license. Employees who apply under supervision need technician or operator credentials.

Alaska License Required

Issuing Agency: Alaska DEC Pesticide Control Program

What you need: You need a commercial applicator certification in the turf and ornamental category (core exam plus category exam), and the business usually needs its own pesticide business license. Employees who apply under supervision need technician or operator credentials.

Arizona License Required

Issuing Agency: Arizona Department of Agriculture (Pest Management)

What you need: You need a commercial applicator certification in the turf and ornamental category (core exam plus category exam), and the business usually needs its own pesticide business license. Employees who apply under supervision need technician or operator credentials.

Arkansas License Required

Issuing Agency: Arkansas Department of Agriculture

What you need: You need a commercial applicator certification in the turf and ornamental category (core exam plus category exam), and the business usually needs its own pesticide business license. Employees who apply under supervision need technician or operator credentials.

California License Required

Issuing Agency: California Department of Pesticide Regulation (DPR) and your County Agricultural Commissioner

Pest control companies: If pest control is your main business, you need a Pest Control Business license with a qualified person holding a Qualified Applicator License or Certificate in category B (Landscape Maintenance).

Gardeners who spray on the side: A Maintenance Gardener Pest Control Business license covers occasional pest control incidental to gardening, limited to ornamental and turf plantings. It needs a qualified person (category B or subcategory Q), $5,000/$10,000 bodily injury and $5,000 property damage coverage including chemical liability, and costs $180 a year ($360 to renew for two years).

After licensing: Register with each county you work in, keep records for two years, and file pesticide use reports with the County Agricultural Commissioner by the 10th of each month.

Colorado License Required

Issuing Agency: Colorado Department of Agriculture

What you need: You need a commercial applicator certification in the turf and ornamental category (core exam plus category exam), and the business usually needs its own pesticide business license. Employees who apply under supervision need technician or operator credentials.

Colorado licenses the business as a commercial applicator, with a qualified supervisor and certified operators in the turf and ornamental categories.

Connecticut License + Posting

Issuing Agency: Connecticut DEEP Pesticide Management

What you need: You need a commercial applicator certification in the turf and ornamental category (core exam plus category exam), and the business usually needs its own pesticide business license. Employees who apply under supervision need technician or operator credentials.

Connecticut also requires posting signs on treated lawns, and limits lawn pesticide use on school and day care grounds.

Delaware License Required

Issuing Agency: Delaware Department of Agriculture

What you need: You need a commercial applicator certification in the turf and ornamental category (core exam plus category exam), and the business usually needs its own pesticide business license. Employees who apply under supervision need technician or operator credentials.

District of Columbia License + Restrictions

Issuing Agency: DC Department of Energy and Environment (DOEE)

What you need: You need a commercial applicator certification in the turf and ornamental category (core exam plus category exam), and the business usually needs its own pesticide business license. Employees who apply under supervision need technician or operator credentials.

DC’s Pesticide Education and Control Amendment Act also restricts which pesticides can be used on certain properties, including child-occupied facilities, so check product eligibility before every job.

Florida License + Fertilizer Cert

Issuing Agency: Florida Department of Agriculture and Consumer Services (FDACS)

Lawn pest control: Applying pesticides to lawns for hire needs a pest control business license with a certified operator in the Lawn and Ornamental category (Chapter 482).

Plant beds only: The Limited Commercial Landscape Maintenance (LCLM) certificate covers herbicides and CAUTION-label insecticides and fungicides in plant beds and ornamentals, never lawns or turf, and only with hand-held sprayers up to 3 gallons or backpacks up to 5. It takes 6 hours of training, a $150 exam, proof of insurance, and 4 CEUs a year.

Fertilizer: Commercial fertilizer applicators on urban landscapes need the Limited Certification for Urban Landscape Commercial Fertilizer Application, built on Green Industries Best Management Practices training, and many counties and cities ban fertilizer during the summer rainy season.

Georgia License Required

Issuing Agency: Georgia Department of Agriculture

What you need: You need a commercial applicator certification in the turf and ornamental category (core exam plus category exam), and the business usually needs its own pesticide business license. Employees who apply under supervision need technician or operator credentials.

Georgia licenses the company as a pesticide contractor and certifies applicators in the ornamental and turf category.

Hawaii Certification Required

Issuing Agency: Hawaii Department of Agriculture (Pesticides Branch)

Hawaii certifies commercial pesticide applicators through HDOA. Restricted-use products always need a certified applicator, so confirm with HDOA which credentials your lawn products and services require before you start.

Idaho License Required

Issuing Agency: Idaho State Department of Agriculture

What you need: You need a commercial applicator certification in the turf and ornamental category (core exam plus category exam), and the business usually needs its own pesticide business license. Employees who apply under supervision need technician or operator credentials.

Idaho issues professional applicator licenses by category, plus a pesticide applicator business license.

Illinois License + Posting

Issuing Agency: Illinois Department of Agriculture

What you need: You need a commercial applicator certification in the turf and ornamental category (core exam plus category exam), and the business usually needs its own pesticide business license. Employees who apply under supervision need technician or operator credentials.

Illinois’ Lawn Care Products Application and Notice Act also requires posting markers on treated lawns and notifying registered neighbors who ask for notice.

Indiana License Required

Issuing Agency: Office of Indiana State Chemist (OISC)

What you need: You need a commercial applicator certification in the turf and ornamental category (core exam plus category exam), and the business usually needs its own pesticide business license. Employees who apply under supervision need technician or operator credentials.

Iowa License Required

Issuing Agency: Iowa Department of Agriculture and Land Stewardship

What you need: You need a commercial applicator certification in the turf and ornamental category (core exam plus category exam), and the business usually needs its own pesticide business license. Employees who apply under supervision need technician or operator credentials.

Kansas License Required

Issuing Agency: Kansas Department of Agriculture

What you need: You need a commercial applicator certification in the turf and ornamental category (core exam plus category exam), and the business usually needs its own pesticide business license. Employees who apply under supervision need technician or operator credentials.

Kentucky License Required

Issuing Agency: Kentucky Department of Agriculture

What you need: You need a commercial applicator certification in the turf and ornamental category (core exam plus category exam), and the business usually needs its own pesticide business license. Employees who apply under supervision need technician or operator credentials.

Louisiana License Required

Issuing Agency: Louisiana Department of Agriculture and Forestry

What you need: You need a commercial applicator certification in the turf and ornamental category (core exam plus category exam), and the business usually needs its own pesticide business license. Employees who apply under supervision need technician or operator credentials.

Maine License + Local Bans

Issuing Agency: Maine Board of Pesticides Control

What you need: You need a commercial applicator certification in the turf and ornamental category (core exam plus category exam), and the business usually needs its own pesticide business license. Employees who apply under supervision need technician or operator credentials.

Maine also runs a pesticide notification registry for neighbors who want advance notice, and some towns (including Portland and South Portland) ban most synthetic pesticides on private lawns.

Maryland License + Fertilizer Cert

Issuing Agency: Maryland Department of Agriculture

What you need: You need a commercial applicator certification in the turf and ornamental category (core exam plus category exam), and the business usually needs its own pesticide business license. Employees who apply under supervision need technician or operator credentials.

Fertilizer: Under the Fertilizer Use Act of 2011, lawn care professionals who apply fertilizer need state certification, or must work under a certified professional.

Local bans: Montgomery County’s Healthy Lawns Act limits cosmetic pesticide use on lawns, and Maryland’s appeals court upheld the county’s authority in 2019. Posting and notification rules apply statewide.

Massachusetts License Required

Issuing Agency: Massachusetts Department of Agricultural Resources (MDAR)

What you need: You need a commercial applicator certification in the turf and ornamental category (core exam plus category exam), and the business usually needs its own pesticide business license. Employees who apply under supervision need technician or operator credentials.

Michigan License + Notice

Issuing Agency: Michigan Department of Agriculture and Rural Development (MDARD)

What you need: You need a commercial applicator certification in the turf and ornamental category (core exam plus category exam), and the business usually needs its own pesticide business license. Employees who apply under supervision need technician or operator credentials.

Michigan also runs a pesticide notification registry for residents who want advance notice of nearby lawn applications.

Minnesota License + Posting

Issuing Agency: Minnesota Department of Agriculture

What you need: You need a commercial applicator certification in the turf and ornamental category (core exam plus category exam), and the business usually needs its own pesticide business license. Employees who apply under supervision need technician or operator credentials.

Minnesota also requires warning signs on treated turf.

Mississippi License Required

Issuing Agency: Mississippi Department of Agriculture and Commerce

What you need: You need a commercial applicator certification in the turf and ornamental category (core exam plus category exam), and the business usually needs its own pesticide business license. Employees who apply under supervision need technician or operator credentials.

Missouri License Required

Issuing Agency: Missouri Department of Agriculture

What you need: You need a commercial applicator certification in the turf and ornamental category (core exam plus category exam), and the business usually needs its own pesticide business license. Employees who apply under supervision need technician or operator credentials.

Montana License Required

Issuing Agency: Montana Department of Agriculture

What you need: You need a commercial applicator certification in the turf and ornamental category (core exam plus category exam), and the business usually needs its own pesticide business license. Employees who apply under supervision need technician or operator credentials.

Nebraska License Required

Issuing Agency: Nebraska Department of Agriculture

What you need: You need a commercial applicator certification in the turf and ornamental category (core exam plus category exam), and the business usually needs its own pesticide business license. Employees who apply under supervision need technician or operator credentials.

Nevada License Required

Issuing Agency: Nevada Department of Agriculture

What you need: You need a commercial applicator certification in the turf and ornamental category (core exam plus category exam), and the business usually needs its own pesticide business license. Employees who apply under supervision need technician or operator credentials.

New Hampshire License Required

Issuing Agency: New Hampshire Division of Pesticide Control

What you need: You need a commercial applicator certification in the turf and ornamental category (core exam plus category exam), and the business usually needs its own pesticide business license. Employees who apply under supervision need technician or operator credentials.

New Jersey License + Fertilizer Cert

Issuing Agency: New Jersey DEP Pesticide Control Program

What you need: You need a commercial applicator certification in the turf and ornamental category (core exam plus category exam), and the business usually needs its own pesticide business license. Employees who apply under supervision need technician or operator credentials.

Fertilizer: New Jersey’s 2011 fertilizer law requires professionals who apply fertilizer to turf to be certified (or work under someone certified), with seasonal and weather limits on applications.

Notice: Lawn applications need posting and notification for registered neighbors.

New Mexico License Required

Issuing Agency: New Mexico Department of Agriculture

What you need: You need a commercial applicator certification in the turf and ornamental category (core exam plus category exam), and the business usually needs its own pesticide business license. Employees who apply under supervision need technician or operator credentials.

New York License + Notice

Issuing Agency: New York State DEC (Bureau of Pest Management)

What you need: You need a commercial applicator certification in the turf and ornamental category (core exam plus category exam), and the business usually needs its own pesticide business license. Employees who apply under supervision need technician or operator credentials.

Markers, everywhere: Commercial lawn applications need yellow-and-black markers at least 4 by 5 inches, 12 inches off the ground, left up for at least 24 hours, in all 62 counties.

48-hour notice, in opt-in counties: Where a county (or NYC) has adopted the Neighbor Notification Law, including Nassau, Suffolk, Westchester and Albany, abutting neighbors within 150 feet get written notice at least 48 hours ahead, with your business registration or certification number and each product’s EPA registration number.

North Carolina License Required

Issuing Agency: NC Department of Agriculture and Consumer Services

What you need: You need a commercial applicator certification in the turf and ornamental category (core exam plus category exam), and the business usually needs its own pesticide business license. Employees who apply under supervision need technician or operator credentials.

North Dakota License Required

Issuing Agency: North Dakota Department of Agriculture

What you need: You need a commercial applicator certification in the turf and ornamental category (core exam plus category exam), and the business usually needs its own pesticide business license. Employees who apply under supervision need technician or operator credentials.

Ohio License Required

Issuing Agency: Ohio Department of Agriculture

What you need: You need a commercial applicator certification in the turf and ornamental category (core exam plus category exam), and the business usually needs its own pesticide business license. Employees who apply under supervision need technician or operator credentials.

Oklahoma License Required

Issuing Agency: Oklahoma Department of Agriculture, Food and Forestry

What you need: You need a commercial applicator certification in the turf and ornamental category (core exam plus category exam), and the business usually needs its own pesticide business license. Employees who apply under supervision need technician or operator credentials.

Oregon License Required

Issuing Agency: Oregon Department of Agriculture

What you need: You need a commercial applicator certification in the turf and ornamental category (core exam plus category exam), and the business usually needs its own pesticide business license. Employees who apply under supervision need technician or operator credentials.

Oregon also licenses landscape businesses through the Landscape Contractors Board, so full-service lawn and landscape companies may need both.

Pennsylvania License + Notice

Issuing Agency: Pennsylvania Department of Agriculture

What you need: You need a commercial applicator certification in the turf and ornamental category (core exam plus category exam), and the business usually needs its own pesticide business license. Employees who apply under supervision need technician or operator credentials.

Pennsylvania keeps a Pesticide Hypersensitivity Registry, and lawn applicators must notify listed people near a treatment site before applying.

Rhode Island License Required

Issuing Agency: Rhode Island DEM

What you need: You need a commercial applicator certification in the turf and ornamental category (core exam plus category exam), and the business usually needs its own pesticide business license. Employees who apply under supervision need technician or operator credentials.

South Carolina License Required

Issuing Agency: Clemson University Department of Pesticide Regulation

What you need: You need a commercial applicator certification in the turf and ornamental category (core exam plus category exam), and the business usually needs its own pesticide business license. Employees who apply under supervision need technician or operator credentials.

South Dakota License Required

Issuing Agency: South Dakota Department of Agriculture and Natural Resources

What you need: You need a commercial applicator certification in the turf and ornamental category (core exam plus category exam), and the business usually needs its own pesticide business license. Employees who apply under supervision need technician or operator credentials.

Tennessee License Required

Issuing Agency: Tennessee Department of Agriculture

What you need: You need a commercial applicator certification in the turf and ornamental category (core exam plus category exam), and the business usually needs its own pesticide business license. Employees who apply under supervision need technician or operator credentials.

In Tennessee, lawn pest control falls under the Pest Control Act: the company needs a charter, a certified applicator in turf and ornamental, and licensed technicians.

Texas License Required

Issuing Agency: Texas Department of Agriculture (TDA)

Two ways in: Lawn applicators for hire are licensed by TDA under either the Agricultural Pesticide license (category 3A Landscape Maintenance and/or 5 Vegetation Management) or the Structural Pest Control Service license (Lawn and Ornamental and/or Weed Control categories). Which one fits depends on what you apply and where.

Fertilizer only: Applicators who apply only fertilizer don’t need a TDA license. Weed-and-feed products contain a pesticide, so they do.

Vehicles: Employees of a 3A applicator business display a TDA-issued vehicle decal.

Utah License Required

Issuing Agency: Utah Department of Agriculture and Food

What you need: You need a commercial applicator certification in the turf and ornamental category (core exam plus category exam), and the business usually needs its own pesticide business license. Employees who apply under supervision need technician or operator credentials.

Vermont License Required

Issuing Agency: Vermont Agency of Agriculture, Food and Markets

What you need: You need a commercial applicator certification in the turf and ornamental category (core exam plus category exam), and the business usually needs its own pesticide business license. Employees who apply under supervision need technician or operator credentials.

Virginia License + Fertilizer Cert

Issuing Agency: Virginia Department of Agriculture and Consumer Services (VDACS)

What you need: You need a commercial applicator certification in the turf and ornamental category (core exam plus category exam), and the business usually needs its own pesticide business license. Employees who apply under supervision need technician or operator credentials.

Virginia also certifies contractor-applicators who apply fertilizer to nonagricultural land, separate from the pesticide license.

Washington License Required

Issuing Agency: Washington State Department of Agriculture

What you need: You need a commercial applicator certification in the turf and ornamental category (core exam plus category exam), and the business usually needs its own pesticide business license. Employees who apply under supervision need technician or operator credentials.

Washington licenses commercial applicators and operators by category, with separate turf and ornamental categories.

West Virginia License Required

Issuing Agency: West Virginia Department of Agriculture

What you need: You need a commercial applicator certification in the turf and ornamental category (core exam plus category exam), and the business usually needs its own pesticide business license. Employees who apply under supervision need technician or operator credentials.

Wisconsin License + Notice

Issuing Agency: Wisconsin DATCP

What you need: You need a commercial applicator certification in the turf and ornamental category (core exam plus category exam), and the business usually needs its own pesticide business license. Employees who apply under supervision need technician or operator credentials.

Wisconsin also requires lawn care posting signs and runs a registry of residents who want advance notice of nearby applications.

Wyoming License Required

Issuing Agency: Wyoming Department of Agriculture

What you need: You need a commercial applicator certification in the turf and ornamental category (core exam plus category exam), and the business usually needs its own pesticide business license. Employees who apply under supervision need technician or operator credentials.

Agencies and rules checked November 2026. We verified the extra rules in California, Florida, New York and Texas against agency sources. In other states the standard three-layer structure is described generally, so confirm category names, fees and exam details with the agency.

Running a Crew

Spraying Without a License

Lawn pesticide enforcement is real: state agriculture departments inspect trucks, follow up on complaints, and fine unlicensed applicators. Neighbor complaints about drift and pets are how most cases start. Penalties vary by state but can include per-violation fines, stop-work orders and loss of the business license. Misusing a product in a way the label doesn’t allow is also a federal FIFRA violation, licensed or not.

Running a Lawn Care Business

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FAQ

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

Yes, in every state and DC. Applying herbicides, insecticides or fungicides to someone else’s lawn for pay is commercial pesticide application, and it needs your state’s pesticide credentials: usually a business license, a certified applicator in the turf and ornamental category, and registered technicians for employees who spray.

Do I need a license to apply weed-and-feed?

Yes. Weed-and-feed contains a herbicide, so it’s a pesticide product, and applying it for hire needs a pesticide license even in states where straight fertilizer doesn’t.

Do I need a license to apply fertilizer only?

Usually not for pesticide purposes; Texas, for example, says fertilizer-only applicators don’t need a TDA license. But Florida, Maryland, New Jersey and Virginia certify professional fertilizer applicators separately, and many Florida counties ban fertilizer during the summer rainy season.

What license does a Florida lawn care company need?

To treat lawns for hire, a pest control business license with a certified operator in the Lawn and Ornamental category. The Limited Commercial Landscape Maintenance certificate covers only plant beds and ornamentals, never turf. Fertilizer application to urban landscapes also needs the limited urban landscape fertilizer certification.

What are the lawn pesticide notification rules in New York?

Statewide, commercial lawn applications need visual markers left up for at least 24 hours. In counties that adopted the Neighbor Notification Law, including Nassau, Suffolk, Westchester and Albany, abutting neighbors within 150 feet also get written notice at least 48 hours before the application.

Can my employees spray before they’re licensed?

Usually not on their own. Most states require technicians or operators to be trained, registered or licensed, and to work under a certified applicator’s supervision. Restricted-use pesticides always require a certified applicator or direct supervision by one.

Bottom Line

If your lawn company sprays anything, including weed-and-feed, you need your state’s pesticide credentials: a business license, a certified applicator in the turf category, and trained technicians. That’s true in all 50 states and DC.

Then check the extras: fertilizer certification in Florida, Maryland, New Jersey and Virginia, posting and neighbor notice in states like New York, Illinois and Pennsylvania, and local limits like Montgomery County’s and Maine’s town bans. The license gets you in the door; the extras keep you out of trouble.