Illinois pesticide and fertilizer record rules for lawn care companies

Last reviewed October 10, 2026 · 7 min read

The short answer

In Illinois, the per-application record rule covers restricted use pesticides: certified commercial applicators and operators record the chemical’s name, its EPA registration number, the amount per unit treated, the date and the use site, and keep those records two years. For every lawn care application, general use included, the Lawn Care Products Application and Notice Act requires a lawn marker at the points of entry, information to the customer at the time of application, and day-before notice to any neighbor who has asked for it. Applying pesticides for hire needs a commercial applicator license, with licensed operators working under the applicator’s supervision. Phosphorus fertilizer goes on a lawn only when a soil test from the past 36 months shows it is needed, unless the product is 0% phosphate or the lawn is being established.

General information, not legal advice. Rules change and can depend on what you apply and where. Confirm what applies to your business with the Illinois Department of Agriculture, Bureau of Environmental Programs and the product label before you rely on anything here.

Who regulates lawn care applicators

The Illinois Department of Agriculture administers and enforces the Illinois Pesticide Act (415 ILCS 60). Its pesticide rules are 8 Ill. Adm. Code Part 250, “Illinois Pesticide Act”. The Department certifies and licenses people applying pesticides outdoors; the Department of Public Health licenses applications in and on man-made structures.

The Department also administers and enforces the Lawn Care Products Application and Notice Act (415 ILCS 65), which covers lawn markers, information to customers, neighbor notice, spill containment and fertilizer application. In that Act, “lawn care products” means fertilizers or pesticides applied to lawns. The Director may enter premises at reasonable times during normal working hours to see pesticides, devices, books and records.

Sources: 415 ILCS 60 Illinois Pesticide Act, 8 Ill. Adm. Code 250.150 Record Keeping, 415 ILCS 65 Lawn Care Products Application and Notice Act, IDOA Pesticides: Certification and Licensing

Licenses you need

Commercial applicator license: a licensed commercial applicator is a certified applicator who owns or manages a business applying pesticides for hire, general use or restricted use. No commercial applicator may use or supervise the use of any pesticide without one. The Lawn Care Act also says applicators for hire must be certified and licensed under the Pesticide Act before applying lawn care products to lawns.
The 3-year commercial applicator license costs $300 from 2026 ($240 for 2024 through 2025). Each organization must have at least one licensed applicator at each facility location, who may apply pesticides or supervise the company’s licensed operators.
Operator license: a licensed operator applies pesticides to others’ land under the direction of a licensed commercial applicator, and may not use any pesticide without an operator license. The license is only issued while the operator works under a licensed or certified applicator, named with their license number on the application; tell the Director when that applicator changes. The 3-year commercial operator license costs $240 from 2026 ($180 for 2024 through 2025).
Exams: applicators pass the 100-question General Standards exam with 70 or more correct and one or more 50-question category exams with 35 or more correct; operators pass the General Standards exam. The general exam comes before any category exam, and an exam may be tried twice in a work day and three times in six months.
Categories: the Department lists Turf Pest Control (turf areas and sod farms) and Ornamental Pest Control (trees, shrubs and ornamental plantings) as licensure categories; the rule groups them under Category 3, Ornamental and Turf Pest Control. A company’s whole range of pesticide use must be covered by the categories on the applicator’s license. Weed control along fence lines, parking lots and roads is listed under Right-of-Way Pest Control.
Renewal: licenses from certification in 2018 or later run for the year issued plus 2 more, to December 31. Licensees are recertified at least every 3 years, by passing a Department exam or by completing 15 hours of Department-approved education courses. The course route is subject to appropriation, enough courses and the Department’s tracking system; anyone who does not complete the hours takes the exam.
Insurance: a commercial applicator shows proof of financial responsibility, either a surety bond of at least $50,000 a year or liability insurance of at least $50,000 per person and $100,000 per occurrence bodily injury ($500,000 annual aggregate) and $50,000 per occurrence property damage ($50,000 aggregate), or a $100,000 combined single limit with a $500,000 aggregate. The policy must carry a 30-day cancellation notice to the Director, and the Department says each company location to be covered must be listed on it.
Containment permit: the area where lawn care products are loaded and pesticide residues are washed or rinsed off equipment at a facility needs a lawn care containment permit from the Department before it is used ($250 per application or renewal).

Sources: 415 ILCS 60 Illinois Pesticide Act, 8 Ill. Adm. Code 250.10 Definitions, 415 ILCS 65 Lawn Care Products Application and Notice Act, IDOA Pesticides: Certification and Licensing, IDOA Training and Testing Options for Pesticide Applicators/Operators, 8 Ill. Adm. Code 250.100 Licensed operator testing and licensing, 8 Ill. Adm. Code 250.90 Commercial applicator certification, testing and licensing, 8 Ill. Adm. Code 250.120 Technical category areas of pesticide use, 8 Ill. Adm. Code 256.20 Lawncare spill, wash water and rinsate collection: scope

What to record for each application

Under 8 Ill. Adm. Code 250.150(b), certified commercial applicators and operators keep a record of all restricted use pesticide usage. For each use of a restricted use pesticide the record includes, but is not limited to:

The name of the chemical
Its USEPA registration number
The amount of chemical concentration per unit treated (for example pounds or ounces per acre)
The date of application
The use site(s)

The Act also lets the Director require license holders to keep records on forms the Director provides. Failing to keep required records, or making false ones, violates the Act: inadequate records score 1 penalty point and falsified records 6, and administrative penalties run from $750 at 14 to 16 points up to $10,000 at 30 points or more. The Department advises keeping accurate, detailed records, including wind speed and direction during the application.

Tip: We found no state rule requiring a per-application record for general use pesticides or for fertilizer on lawns. The written duty for every lawn care application is the information you give the customer, below.

Sources: 8 Ill. Adm. Code 250.150 Record Keeping, 415 ILCS 60 Illinois Pesticide Act, IDOA Pesticides: Uses & Misuses

How long to keep records and who can ask for them

Restricted use pesticide records: two years.
The Director has access to required records at any reasonable time during normal working hours. Information on them is confidential, and summaries for purposes other than enforcement may not identify any individual.
Records gathered by the Director are made available to the Department of Public Health under the Illinois Health and Hazardous Substances Registry Act.
A customer, or anyone whose property abuts or is next to the customer’s, can ask for a copy of the safety data sheet and the approved registration label of each lawn care product applied, and the applicator must provide them.

Sources: 8 Ill. Adm. Code 250.150 Record Keeping, 415 ILCS 60 Illinois Pesticide Act, 415 ILCS 65 Lawn Care Products Application and Notice Act

Customer notice, posting and lawn signs

Right after applying lawn care products (fertilizer or pesticide) to a lawn other than a golf course, an applicator for hire places a lawn marker at the usual point or points of entry. The marker:

Is a 4 by 5 inch white sign with lettering in a contrasting color, on a dowel or other support, its bottom at least 12 inches above the turf
Reads, in letters at least 3/8 inch high: “LAWN CARE APPLICATION - STAY OFF GRASS UNTIL DRY - FOR MORE INFORMATION CONTACT:” followed by the name and business telephone number of the applicator for hire
Is removed by the property owner or resident (or someone they authorize) the day after the application, and by no one else

At the time of application, give the customer:

The brand name, common name and scientific name of each lawn care product applied
The type of fertilizer or pesticide in each product
The reason each product was used
The range of concentration of end use product applied and the amount of material applied
Any special label instruction about the customer’s use of the lawn after the application
Your business name and telephone number, and the name of the person who actually applied the products

Neighbor notice: a neighbor whose property abuts or is next to your customer’s can ask you for prior notification by giving their name, address and phone number. At least the day before a scheduled application, notify each neighbor who asked, in writing, in person or by phone, with the date and approximate time of day. If you cannot reach them, leave a written notice with that information at their home at the time of the application.

School districts and early care and education centers keep their own registries of parents and guardians who want notice before pesticide is applied to their grounds (or notify all of them), at least 4 business days ahead; that duty is the school district’s or center’s. Violations of the Lawn Care Act bring penalties of $250 for a first violation, $500 for a second and $1,000 for a third or later.

Source: 415 ILCS 65 Lawn Care Products Application and Notice Act

Fertilizer rules

Lawn fertilizer rules for applicators for hire are in the Lawn Care Act (415 ILCS 65/5a). They do not apply to commercial farms, agricultural land or golf courses, or to lawn repair products (seed containing or coated with fertilizer).

Phosphorus only when a soil test shows the soil is lacking in phosphorus against the University of Illinois standard. The test must be from the 36 months before the application, by a laboratory the University of Illinois has identified as acceptable. No test is needed for a 0% phosphate fertilizer (no more than 0.67% available phosphoric acid) or to establish a lawn in its first 2 growing seasons.
No fertilizer on impervious surfaces, except where it lands there by accident and is swept or blown back onto the lawn or returned to a container for reuse.
No fertilizer within 3 feet of any water body with a spray, drop or rotary spreader with a deflector, or within 15 feet without that equipment.
No fertilizer when the lawn is frozen (its roots frozen, typically 3 or 4 inches down) or saturated.

We found no nitrogen rate limit, blackout dates or fertilizer application record for lawn care in the Lawn Care Act or the Illinois Fertilizer Act of 1961, which exempts lawn care applicators for hire from its fertilizer distributor license.

Sources: 415 ILCS 65 Lawn Care Products Application and Notice Act, 505 ILCS 80 Illinois Fertilizer Act of 1961

How GroundsQuote’s chemical records line up

GroundsQuote keeps an application record for each chemical a crew puts down on a job. On a job at a property in Illinois, Finish job asks the crew for the details Illinois lists, and the records export with the columns in Illinois’s order. Here is each item Illinois lists, set against what the record actually holds. Keeping the record complete and correct is still your responsibility.

Illinois record items and GroundsQuote’s chemical application record
Illinois asks for	In GroundsQuote	Status
Name of the chemical (restricted use)	Product name, from the chemical’s setup	Recorded
USEPA registration number (restricted use)	EPA Reg. No., from the chemical’s setup	Recorded
Amount of chemical concentration per unit treated (restricted use)	Rate applied (per area), with the total used	Recorded
Date of application (restricted use)	Date applied (the job’s finish)	Recorded
Use site(s) (restricted use)	Address, city, state, ZIP and county, and where on the property (front lawn, beds, fence line… or a description), set on the job	Recorded
Customer information: brand, common and scientific name of each product	The application statement gives each product’s name and its active ingredients as entered in the chemical’s setup; there is no field for a scientific name	Partly
Customer information: type of fertilizer or pesticide	Type, from the chemical’s setup, on the application statement	Recorded
Customer information: reason for use	Target pest, set on the job, on the application statement as each product’s purpose	Recorded
Customer information: range of concentration and amount applied	The application statement gives the rate applied, the mix and the total used; it does not state a concentration range	Partly
Customer information: label instructions for the customer’s use of the lawn	The re-entry time and your note for the customer on each chemical, on the application statement; other label instructions are not copied onto it	Partly
Customer information: business name and phone, and who applied it	Your business name and phone and everyone who applied it, on the application statement	Recorded
Lawn marker at the points of entry	GroundsQuote prints the marker in the Act’s wording, 4 by 5 inches with 27-point (3/8 inch) letters and your name and phone; placing it is yours	Partly
Neighbor prior notification on request	Chemical notices & contracts on the customer’s page keeps the neighbor’s request and the notice given; GroundsQuote does not send or schedule the notice	Partly
Phosphorus soil test from the past 36 months	Not kept	Not recorded

Illinois’s record list applies to restricted use pesticides. The application statement carries most of the customer information the Lawn Care Act asks for and is ready once the crew records the job’s chemicals; hand it over at the application, place the lawn markers GroundsQuote prints, and give neighbors who asked their day-before notice.

Everything a GroundsQuote application record holds

When:: Date and time applied (when the job was finished), job start and finish times (the office can correct them), and when people may go back onto the lawn (from the label’s re-entry interval)
Where:: Customer name, phone and mailing address, street address, city, state, ZIP and county of the property, and where on the property it went (front lawn, beds, fence line…)
Who:: Everyone who applied it (the crew riding that day starts checked) and the person supervising, with each one’s standing (certified, registered technician, trained, not certified or registered), license number, category and expiry, and the business license when license-keeping is switched on
Product:: Name, type, manufacturer, EPA registration number, state registration number, EUP / Section 18 / 24(c) number, active ingredients, N-P-K and slow-release %, formulation, restricted-use flag, signal word, re-entry interval, and a copy of the label on file
Amounts:: Rate applied (per area), area treated in sq ft, total product used, mix ratio, water or carrier, gallons of mix applied, lb of N and P per 1,000 sq ft
Job:: Target pest and the equipment used (both set on the job), service and crew
Weather:: From the nearest weather station at the start and finish (temperature, humidity, wind speed and direction, gusts, rain in the last hour, conditions), and the conditions on site: the crew confirms the station reading or enters the wind, direction and temperature they measured
Your state:: Each job follows the rules of the state its property is in: Finish job asks for the details that state lists and waits until they are filled in, and the records export in that state’s column order
Paperwork:: An application statement for each job to print, leave or email (each product with its EPA number, active ingredients, type, purpose, rate, amount and mix, where on the property, the date and time, who applied it, the re-entry time and your notes for the customer, with the state’s own lines), and lawn signs laid out from the state’s rule
Kept beside the records:: Each person’s training, ID copies and certificates and what they are responsible for; neighbor requests and notices, registry notices and attempts, notices given to customers, signed waivers and contracts, each with a copy of the paper
Changes:: Corrections are saved as history; the earlier record is kept

See how it works on the job in chemical records and field tools, or read about GroundsQuote for lawn treatment companies.

Official sources

Everything on this page comes from these Illinois sources, checked on October 10, 2026. Read them for the full text and any changes since.

Keep application records as the crew finishes the job

Set the chemicals each service uses once. The crew sees the planned amounts for each lawn, and finishing the job saves the record with the product, rate, area, applicator and weather.

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Questions

Do I need application records for general use products, or only restricted use?

Illinois’s per-application record rule covers restricted use pesticides only. For every lawn care application, general use included, the Lawn Care Act requires a lawn marker and information to the customer at the time of application, and the Director may require license holders to keep other records on forms the Director provides.

Does Illinois require a lawn sign after a lawn care application?

Yes. Right after applying fertilizer or pesticide to a lawn other than a golf course, an applicator for hire places a 4 by 5 inch white marker at the usual points of entry reading “LAWN CARE APPLICATION - STAY OFF GRASS UNTIL DRY - FOR MORE INFORMATION CONTACT:” with the name and business telephone number of the applicator for hire. The owner or resident removes it the next day.

Do I have to notify neighbors before treating a lawn in Illinois?

Only neighbors who ask. A neighbor whose property abuts or is next to your customer’s can request notice; you then tell them at least the day before each scheduled application, in writing, in person or by phone, with the date and approximate time, or leave a written notice at their home if you cannot reach them.

Can I put phosphorus fertilizer on lawns in Illinois?

Only when a soil test from the past 36 months, by a laboratory the University of Illinois accepts, shows the soil is lacking in phosphorus. No test is needed for a 0% phosphate fertilizer or to establish a lawn in its first 2 growing seasons.

Other states

Pesticide and fertilizer record rules by state →