Posting Regulations:
Pesticide Application Compliance Signage

Pesticide application posting signs are used to notify people when pesticides have been applied to an area. This helps reduce exposure and keeps workers, residents, and visitors informed. These signs are typically posted before or immediately after application and remain in place for a required period of time.

Posting signs are commonly used by licensed applicators, lawn care and landscaping companies, property managers, municipalities, schools, parks, and commercial facilities. It is important to know if you are applying pesticides in areas where notification is required by law.

This page organizes pesticide application posting sign requirements by state to help you quickly identify what type of signage is needed where you work. Required signs may vary in size, color, wording, and included information.

We do our best to keep this information current, but requirements can change. Customers are responsible for confirming state and local compliance before placing an order. Not all states require posting signs.

If you need assistance with your compliance signage order, call 1-800-942-5816 or message our team.

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Colorado

Colorado

Colorado pesticide posting signs are used to notify the public when pesticides have been applied to turf or landscaped areas. Signs must meet specific color, size, and posting requirements.

State Resource: Colorado Department of Agriculture – Pesticide Program

Posting Sign Requirements

Download full posting sign requirements here.

Requirement Details
Sign Format & Size Exactly 4” high × 5” wide; BMC Sign or Corrugated Posting Signs only
Color & Print Yellow sign with black print; one-sided print only (back may be plain white)
Fonts & Graphics 36 pt type; 12 pt type; 2” diameter graphic; date and company name may be handwritten
Ground Clearance 12”
Required Wording “PESTICIDE APPLICATION – PESTICIDE APPLIED ON: – BY: – THIS SIGN MUST REMAIN FOR 24 HOURS FOLLOWING PESTICIDE APPLICATION.”; company name required
Notification Blackburn is able to display any content requested on the flag; however, compliance with all applicable state and local posting regulations remains the sole responsibility of the client. By proceeding with any requested display, the client acknowledges that we do not assume responsibility for ensuring regulatory compliance, nor for any fines, fees, or penalties that may result from noncompliance with posting requirements.

Connecticut

Connecticut

Connecticut pesticide posting signs are used to notify the public when pesticides have been applied to turf or landscaped areas. Signs must meet specific color, size, and posting requirements.

State Resource: Connecticut Department of Energy & Environmental Protection – Pesticide Management

Posting Sign Requirements

Download full posting sign requirements here.

Requirement Details
Sign Format & Size Exactly 4” high × 5” wide; BMC Sign or Corrugated Posting Signs only
Color & Print Yellow sign with black print; one-sided print only (back may be plain white)
Fonts & Graphics 36 pt type; 12 pt type; 2” diameter graphic; date and company name may be handwritten
Ground Clearance 12”
Required Wording “PESTICIDE APPLICATION – PESTICIDE APPLIED ON: – BY: – THIS SIGN MUST REMAIN FOR 24 HOURS FOLLOWING PESTICIDE APPLICATION.”; company name required
Notification Blackburn is able to display any content requested on the flag; however, compliance with all applicable state and local posting regulations remains the sole responsibility of the client. By proceeding with any requested display, the client acknowledges that we do not assume responsibility for ensuring regulatory compliance, nor for any fines, fees, or penalties that may result from noncompliance with posting requirements.

Florida

Florida

Florida pesticide posting signs are used to notify the public when pesticides have been applied to turf or landscaped areas. Signs must meet specific color, size, and posting requirements.

State Resource: Florida Department of Agriculture & Consumer Services – Pesticide Regulation

Posting Sign Requirements

Download full posting sign requirements here.

Requirement Details
Sign Format & Size Minimum 4” × 5”; BMC Signs or Corrugated Posting Signs
Color & Print Contrasting colors
Fonts & Graphics 24 pt type; 2” diameter graphic
Ground Clearance 12”
Required Wording “PESTICIDE APPLICATION – KEEP OFF UNTIL DRY”; company name & phone number must be on front (printed or handwritten)
Notification Blackburn is able to display any content requested on the flag; however, compliance with all applicable state and local posting regulations remains the sole responsibility of the client. By proceeding with any requested display, the client acknowledges that we do not assume responsibility for ensuring regulatory compliance, nor for any fines, fees, or penalties that may result from noncompliance with posting requirements.

Georgia

Georgia

Georgia pesticide posting signs are used to notify the public when pesticides have been applied to turf or landscaped areas. Signs must meet specific color, size, and posting requirements.

State Resource: Georgia Department of Agriculture – Pesticides Division

Posting Sign Requirements

Download full posting sign requirements here.

Requirement Details
Sign Format & Size Minimum 4” × 5”; Flag, BMC Signs, or Corrugated Posting Signs (larger than 4×5 recommended)
Color & Print Contrasting colors
Fonts & Graphics 72 pt type (11/16”); 30 pt type (9/32”); 11 pt type (3/32”); 2” diameter graphic
Ground Clearance 8” - 12”
Required Wording “CAUTION – PESTICIDE APPLICATION – KEEP OFF”; company name & phone optional
Notification Blackburn is able to display any content requested on the flag; however, compliance with all applicable state and local posting regulations remains the sole responsibility of the client. By proceeding with any requested display, the client acknowledges that we do not assume responsibility for ensuring regulatory compliance, nor for any fines, fees, or penalties that may result from noncompliance with posting requirements.

Illinois

Illinois

Illinois pesticide posting signs are used to notify the public when pesticides have been applied to turf or landscaped areas. Signs must meet specific color, size, and posting requirements.

State Resource: Illinois Department of Agriculture – Pesticides

Posting Sign Requirements

Download full posting sign requirements here.

Requirement Details
Sign Format & Size Minimum 4” × 5”; Flag, BMC Signs, or Corrugated Posting Signs
Color & Print White with contrasting colors
Fonts & Graphics 36 pt type (3/8”) or larger
Ground Clearance 12”
Required Wording “LAWN CARE APPLICATION – STAY OFF GRASS UNTIL DRY – FOR MORE INFORMATION CONTACT”; company name & phone
Notification Blackburn is able to display any content requested on the flag; however, compliance with all applicable state and local posting regulations remains the sole responsibility of the client. By proceeding with any requested display, the client acknowledges that we do not assume responsibility for ensuring regulatory compliance, nor for any fines, fees, or penalties that may result from noncompliance with posting requirements.

Indiana

Indiana

Indiana pesticide posting signs are used to notify the public when pesticides have been applied to turf or landscaped areas. Signs must meet specific color, size, and posting requirements.

State Resource: Indiana Office of the State Chemist – Pesticide Program

Posting Sign Requirements

Download full posting sign requirements here.

Requirement Details
Sign Format & Size Minimum 4” × 5”; Flag, BMC Signs, or Corrugated Posting Signs; PVC staff only
Color & Print Contrasting colors
Fonts & Graphics 36 pt type (3/8”)
Ground Clearance 6” - 18”
Required Wording “LAWN CARE APPLICATION – KEEP OFF THE GRASS”; company name & phone; optional “CUSTOMER PLEASE REMOVE AFTER 24 HRS”
Notification Blackburn is able to display any content requested on the flag; however, compliance with all applicable state and local posting regulations remains the sole responsibility of the client. By proceeding with any requested display, the client acknowledges that we do not assume responsibility for ensuring regulatory compliance, nor for any fines, fees, or penalties that may result from noncompliance with posting requirements.

Iowa

Iowa 1 Iowa 2

Iowa pesticide posting signs are used to notify the public when pesticides have been applied to turf or landscaped areas. Signs must meet specific color, size, and posting requirements.

State Resource: Iowa Department of Agriculture & Land Stewardship – Pesticide Bureau

Posting Sign Requirements

Download full posting sign requirements here.

Requirement Details
Sign Format & Size Minimum 4” × 5”; Flag, BMC Signs, or Corrugated Posting Signs
Color & Print Contrasting colors
Fonts & Graphics 36 pt type (3/8”); 1¾” diameter graphic
Ground Clearance 12”
Required Wording “THIS AREA CHEMICALLY TREATED – KEEP OFF – DO NOT REMOVE FOR 24 HRS”; company name & phone
Notification Blackburn is able to display any content requested on the flag; however, compliance with all applicable state and local posting regulations remains the sole responsibility of the client. By proceeding with any requested display, the client acknowledges that we do not assume responsibility for ensuring regulatory compliance, nor for any fines, fees, or penalties that may result from noncompliance with posting requirements.

Kentucky

Kentucky

Kentucky pesticide posting signs are used to notify the public when pesticides have been applied to turf or landscaped areas. Signs must meet specific color, size, and posting requirements.

State Resource: Kentucky Department of Agriculture

Posting Sign Requirements

Download full posting sign requirements here.

Requirement Details
Sign Format & Size Minimum 4” × 5”; Flag, BMC Signs, or Corrugated Posting Signs
Color & Print White flag with contrasting colors
Fonts & Graphics 36 pt type (3/8”) or larger
Ground Clearance 12”
Required Wording “LAWN CARE APPLICATION – PLEASE STAY OFF GRASS UNTIL DRY”; company name & phone optional; Keep Off logo optional
Notification Blackburn is able to display any content requested on the flag; however, compliance with all applicable state and local posting regulations remains the sole responsibility of the client. By proceeding with any requested display, the client acknowledges that we do not assume responsibility for ensuring regulatory compliance, nor for any fines, fees, or penalties that may result from noncompliance with posting requirements.

Maine

Maine

Maine pesticide posting signs are used to notify the public when pesticides have been applied to turf or landscaped areas. Signs must meet specific color, size, and posting requirements.

State Resource: Maine Board of Pesticides Control

Posting Sign Requirements

Download full posting sign requirements here.

Requirement Details
Sign Format & Size Minimum 4” × 5”; BMC Signs or Corrugated Posting signs
Color & Print Light background (white, beige, yellow, or pink) with dark, bold letters (black, blue, or green)
Fonts & Graphics 72 pt type; 30 pt type; 12 pt type; 2” diameter Keep Off logo
Ground Clearance 12”
Required Wording “CAUTION PESTICIDE APPLICATION – DATE & TIME OF APPLICATION – RE-ENTRY PRECAUTIONS – SIGN REMOVAL DATE”; company name & phone; 2-sided allowed
Notification Blackburn is able to display any content requested on the flag; however, compliance with all applicable state and local posting regulations remains the sole responsibility of the client. By proceeding with any requested display, the client acknowledges that we do not assume responsibility for ensuring regulatory compliance, nor for any fines, fees, or penalties that may result from noncompliance with posting requirements.

Maryland

Maryland

Maryland pesticide posting signs are used to notify the public when pesticides have been applied to turf or landscaped areas. Signs must meet specific color, size, and posting requirements.

State Resource: Maryland Department of Agriculture – Pesticide Regulation

Posting Sign Requirements

Download full posting sign requirements here.

Requirement Details
Sign Format & Size Minimum 4” × 5”; BMC Signs or Corrugated Posting Signs
Color & Print Yellow sign with black print
Fonts & Graphics 72 pt type; 30 pt type; 11 pt type; 2” diameter Keep Off logo
Ground Clearance 12” - 16”
Required Wording Front only: “CAUTION – PESTICIDE APPLICATION – KEEP OFF – CUSTOMER PLEASE REMOVE AFTER 48 HOURS”; Back: date applied, name, phone number (all 18 pt type)
Notification Blackburn is able to display any content requested on the flag; however, compliance with all applicable state and local posting regulations remains the sole responsibility of the client. By proceeding with any requested display, the client acknowledges that we do not assume responsibility for ensuring regulatory compliance, nor for any fines, fees, or penalties that may result from noncompliance with posting requirements.

Massachusetts

Massachusetts

Massachusetts pesticide posting signs are used to notify the public when pesticides have been applied to turf or landscaped areas. Signs must meet specific color, size, and posting requirements.

State Resource: Massachusetts Pesticide Program

Posting Sign Requirements

Download full posting sign requirements here.

Requirement Details
Sign Format & Size 5X5 Corrugated Posting Sign, 5X5 BMC Sign, or 6X6 BMC Sign
Color & Print Yellow sign with black print; One side print only
Fonts & Graphics 72 pt type; 30 pt type; 2” diameter Keep Off logo
Ground Clearance 12”
Required Wording “CAUTION – PESTICIDE APPLICATION – KEEP OFF”; company name & phone; NO LOGOS
Notification Blackburn is able to display any content requested on the flag; however, compliance with all applicable state and local posting regulations remains the sole responsibility of the client. By proceeding with any requested display, the client acknowledges that we do not assume responsibility for ensuring regulatory compliance, nor for any fines, fees, or penalties that may result from noncompliance with posting requirements.

Michigan

Michigan

Michigan pesticide posting signs are used to notify the public when pesticides have been applied to turf or landscaped areas. Signs must meet specific color, size, and posting requirements.

State Resource: Michigan Department of Agriculture & Rural Development – Pesticide Program

Posting Sign Requirements

Download full posting sign requirements here.

Requirement Details
Sign Format & Size Minimum 4” × 5”; BMC Sign
Color & Print White sign with green print; 2-sided (same both sides)
Fonts & Graphics 72 pt type; 30 pt type; 11 pt type; 2” diameter Keep Off logo
Ground Clearance 12”
Posting Duration 24 hours
Required Wording “CAUTION – PESTICIDE APPLICATION – KEEP OFF UNTIL DRY – CUSTOMER: PLEASE REMOVE AFTER 24 HOURS”; No company name or logo; cannot customize
Notification Blackburn is able to display any content requested on the flag; however, compliance with all applicable state and local posting regulations remains the sole responsibility of the client. By proceeding with any requested display, the client acknowledges that we do not assume responsibility for ensuring regulatory compliance, nor for any fines, fees, or penalties that may result from noncompliance with posting requirements.

Minnesota

Minnesota

Minnesota pesticide posting signs are used to notify the public when pesticides have been applied to turf or landscaped areas. Signs must meet specific color, size, and posting requirements.

State Resource: Minnesota Department of Agriculture – Pesticide & Fertilizer Management

Posting Sign Requirements

Download full posting sign requirements here.

Requirement Details
Sign Format & Size Minimum 4” × 5”; Flag, BMC Signs, or Corrugated Posting Signs
Color & Print Contrasting colors; capitalized letters only
Fonts & Graphics 50 pt type (.5”) or larger
Ground Clearance 18”
Posting Duration 48 hours
Required Wording “THIS AREA CHEMICALLY TREATED KEEP CHILDREN & PETS OFF UNTIL”; company name; “PESTICIDES APPLIED” (optional)
Notification Blackburn is able to display any content requested on the flag; however, compliance with all applicable state and local posting regulations remains the sole responsibility of the client. By proceeding with any requested display, the client acknowledges that we do not assume responsibility for ensuring regulatory compliance, nor for any fines, fees, or penalties that may result from noncompliance with posting requirements.

New Jersey

New Jersey

New Jersey pesticide posting signs are used to notify the public when pesticides have been applied to turf or landscaped areas. Signs must meet specific color, size, and posting requirements.

State Resource: New Jersey Department of Environmental Protection – Bureau of Pesticide Control

Posting Sign Requirements

Download full posting sign requirements here.

Requirement Details
Sign Format & Size Minimum 4” × 5”; Flag, BMC Signs, or Corrugated Posting Signs
Color & Print White flag with contrasting ink
Fonts & Graphics 50 pt type (½” high); 2” diameter Keep Off logo
Ground Clearance Not specified
Required Wording “PESTICIDE TREATED AREA – CUSTOMER: PLEASE REMOVE AFTER 72 HOURS”; phone number required; company name or license number (or both)
Notification Blackburn is able to display any content requested on the flag; however, compliance with all applicable state and local posting regulations remains the sole responsibility of the client. By proceeding with any requested display, the client acknowledges that we do not assume responsibility for ensuring regulatory compliance, nor for any fines, fees, or penalties that may result from noncompliance with posting requirements.

New York

New York

New York pesticide posting signs are used to notify the public when pesticides have been applied to turf or landscaped areas. Signs must meet specific color, size, and posting requirements.

State Resource: New York State Department of Environmental Conservation – Pesticides

Posting Sign Requirements

Download full posting sign requirements here.

Requirement Details
Sign Format & Size Minimum 4” × 5”; BMC Signs or Corrugated Posting Signs
Color & Print Yellow sign / black print; yellow on front and back
Fonts & Graphics 36 pt type; 1.5” diameter Keep Off logo
Ground Clearance 12”
Posting Duration 24 hours
Required Wording “PESTICIDE APPLICATION – DO NOT ENTER – DO NOT REMOVE SIGN FOR 24 HOURS”; DATE & TIME; company logo allowed on back only
Notification Blackburn is able to display any content requested on the flag; however, compliance with all applicable state and local posting regulations remains the sole responsibility of the client. By proceeding with any requested display, the client acknowledges that we do not assume responsibility for ensuring regulatory compliance, nor for any fines, fees, or penalties that may result from noncompliance with posting requirements.

Ohio

Ohio

Ohio pesticide posting signs are used to notify the public when pesticides have been applied to turf or landscaped areas. Signs must meet specific color, size, and posting requirements.

State Resource: Ohio Department of Agriculture – Pesticides

Posting Sign Requirements

Download full posting sign requirements here.

Requirement Details
Sign Format & Size Minimum 4” × 5”; Flag, BMC Signs, or Corrugated Posting Signs
Color & Print Contrasting colors
Fonts & Graphics 18 pt type; 14 pt type; 10 pt type; 1.8” diameter Keep Off logo
Ground Clearance 14”
Required Wording “LAWN CHEMICAL APPLICATION – KEEP OFF – ABUTTING RESIDENTS MAY RECEIVE ADVANCE NOTICE – LAWN POSTING SIGNS MUST REMAIN IN PLACE FOR 24 HOURS FOLLOWING LAWN APPLICATION”; company name and phone number; NO logos or advertising
Notification Blackburn is able to display any content requested on the flag; however, compliance with all applicable state and local posting regulations remains the sole responsibility of the client. By proceeding with any requested display, the client acknowledges that we do not assume responsibility for ensuring regulatory compliance, nor for any fines, fees, or penalties that may result from noncompliance with posting requirements.

Rhode Island

Rhode Island

Rhode Island pesticide posting signs are used to notify the public when pesticides have been applied to turf or landscaped areas. Signs must meet specific color, size, and posting requirements.

State Resource: Rhode Island Department of Environmental Management – Pesticides

Posting Sign Requirements

Download full posting sign requirements here.

Requirement Details
Sign Format & Size Minimum 4” × 5”; Flag, BMC Signs, or Corrugated Posting Signs
Color & Print White with dark ink color
Fonts & Graphics 52 pt type (½” high); 24 pt type
Ground Clearance 14”
Required Wording “LAWN CHEMICALS APPLIED – KEEP POSTED FOR 48 HOURS – DATE OF CHEMICAL APPLICATION:”; company name & phone
Notification Blackburn is able to display any content requested on the flag; however, compliance with all applicable state and local posting regulations remains the sole responsibility of the client. By proceeding with any requested display, the client acknowledges that we do not assume responsibility for ensuring regulatory compliance, nor for any fines, fees, or penalties that may result from noncompliance with posting requirements.

Vermont

Vermont

Vermont pesticide posting signs are used to notify the public when pesticides have been applied to turf or landscaped areas. Signs must meet specific color, size, and posting requirements.

State Resource: Vermont Agency of Agriculture – Pesticide Programs

Posting Sign Requirements

Download full posting sign requirements here.

Requirement Details
Sign Format & Size Minimum 4” × 5”; BMC Signs or Corrugated Posting Signs
Color & Print Contrasting colors
Fonts & Graphics No type size required
Ground Clearance 12”
Required Wording Front only: “CAUTION – PESTICIDE APPLICATION – KEEP OFF UNTIL DRY – CUSTOMER: DO NOT REMOVE FOR 24 HOURS”; back: DATE & TIME; company name & phone may be on back
Notification Blackburn is able to display any content requested on the flag; however, compliance with all applicable state and local posting regulations remains the sole responsibility of the client. By proceeding with any requested display, the client acknowledges that we do not assume responsibility for ensuring regulatory compliance, nor for any fines, fees, or penalties that may result from noncompliance with posting requirements.

Washington

Washington

Washington pesticide posting signs are used to notify the public when pesticides have been applied to turf or landscaped areas. Signs must meet specific color, size, and posting requirements.

State Resource: Washington State Department of Agriculture – Pesticides

Posting Sign Requirements

Download full posting sign requirements here.

Requirement Details
Sign Format & Size Minimum 4” × 5”; Flag, BMC Signs, or Corrugated Posting Signs
Color & Print Contrasting colors
Fonts & Graphics Header and footer must be large letters
Ground Clearance 12”
Required Wording “THIS LANDSCAPE HAS BEEN TREATED BY – FOR MORE INFORMATION PLEASE CALL”; company name or logo & phone
Notification Blackburn is able to display any content requested on the flag; however, compliance with all applicable state and local posting regulations remains the sole responsibility of the client. By proceeding with any requested display, the client acknowledges that we do not assume responsibility for ensuring regulatory compliance, nor for any fines, fees, or penalties that may result from noncompliance with posting requirements.

Wisconsin

Wisconsin

Wisconsin pesticide posting signs are used to notify the public when pesticides have been applied to turf or landscaped areas. Signs must meet specific color, size, and posting requirements.

State Resource: Wisconsin Department of Agriculture, Trade & Consumer Protection – Pesticides

Posting Sign Requirements

Download full posting sign requirements here.

Requirement Details
Sign Format & Size At least 4” × 5” Corrugated Posting Sign or BMC sign; 5” × 6” Banner Flag optional
Color & Print White with red ink
Fonts & Graphics 36 pt type; 9 pt type; 2” diameter Keep Off logo
Ground Clearance Not specified
Required Wording “PESTICIDE APPLICATION – PLEASE KEEP OFF – DO NOT REMOVE UNTIL SUNSET ON – FOR ADDITIONAL INFORMATION ON THIS APPLICATION OR ANY FUTURE APPLICATIONS CALL – THIS SIGN REQUIRED BY THE DATCP (608-224-LAWN); Company phone number
Notification Blackburn is able to display any content requested on the flag; however, compliance with all applicable state and local posting regulations remains the sole responsibility of the client. By proceeding with any requested display, the client acknowledges that we do not assume responsibility for ensuring regulatory compliance, nor for any fines, fees, or penalties that may result from noncompliance with posting requirements.

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FAQs

What are pesticide application posting signs?

Pesticide application posting signs are used to notify people that pesticides have been applied to an area. They help limit exposure by clearly marking treated turf or landscaped spaces and indicating when it is safe to re-enter.

Who is required to use pesticide posting signs?

Posting signs are typically required for licensed applicators, lawn care and landscaping companies, property managers, municipalities, schools, parks, and commercial facilities when applying pesticides in regulated areas. Requirements vary by state.

Do all states require pesticide posting signs?

No. Only certain states have specific posting requirements. This page includes states with defined regulations. If your state is not listed, posting may not be required, or different rules may apply.

Why do posting requirements vary by state?

Pesticide regulations are set at the state level, which means each state can define its own requirements for sign wording, size, color, placement, and how long signs must remain posted.

How long do pesticide posting signs need to stay in place?

Posting duration varies by state and can range from until the area is dry to 24, 48, or 72 hours after application. Each state section on this page outlines the required posting time.

Are there specific size or color requirements for posting signs?

Yes, many states specify minimum sign sizes, approved colors, font sizes, and ground clearance. These details are listed under each state when available. If not noted, size requirements may vary and should be confirmed with the appropriate state authority.

Can posting signs include company logos or advertising?

Some states allow company names or phone numbers, while others prohibit logos, advertising, or customization altogether. Always follow the formatting rules outlined for the state where the application takes place.

Are handwritten dates or company information allowed?

In some states, handwritten dates or company details are permitted. In others, all information must be printed. Check the state-specific requirements before ordering or using signage.

Who can I contact if I need help selecting the right posting sign?

If you have questions or need help understanding which posting signs are appropriate for your state, contact us. Blackburn can help customize your signage where state regulations allow.