California pesticide license for lawn care: the maintenance gardener route

California sorts lawn spraying by what kind of business you run. If you mow, clean up and look after plants and turf around commercial properties, public buildings and parks, and the spraying is a side job, the Department of Pesticide Regulation (DPR) licenses you as a maintenance gardener. If pest control is the main business, you need a different and pricier license. This page covers the gardener route. The DPR documents behind it were read 2026-10-01, and the fee table in them took effect August 5, 2024.

Which business license

DPR's licensing packet says you need the Maintenance Gardener Pest Control Business (MGB) license if you are a maintenance gardener who occasionally does pest control in support of a gardening business for hire. A maintenance gardener, by its definition, mows lawns, does general yard cleanup or cares for plants and turf in the ornamental and garden areas around public structures, commercial properties such as offices and shopping centers, and buildings inside parks and golf courses. If the primary purpose of your business is pest control, you need the Pest Control Business license. Pest control done as part of building new landscapes is exempt from either.

The money differs. DPR's fee table sets the main-office Pest Control Business license at $360 for a new application, against $180 for the gardener license. The insurance gap is wider.

Insurance and workers' comp

DPR's Pest Control Business packet lists the financial responsibility amounts for both licenses side by side.

	Bodily injury per person	Per occurrence	Property damage
Maintenance gardener business	$5,000	$10,000	$5,000
Pest control business, ground	$100,000	$300,000	$50,000

A gardener can also post a certificate of deposit or bond for $5,000, or sign a statement that you will pay damages from personal assets. The gardener packet adds workers' compensation insurance if you have employees, and the application asks for your carrier and policy number. With no employees you write "no employees."

The gardener minimum is a fraction of what DPR asks of a pest control business, so it says little about what a spray claim costs. Pick your limits from your contracts. The applicator endorsement and the pollution wording are the subject of the pesticide applicator insurance guide, and the workers' comp guide covers the employee side. If you file an ACORD certificate, DPR says it has to state that the policy meets 3 CCR 6524, including chemical bodily injury and chemical property damage coverage, so have your agent put that statement on it.

The qualified person

Every business location needs a supervisor holding a Qualified Applicator Certificate with subcategory Q, Maintenance Gardener, or category B, Landscape Maintenance. A Qualified Applicator License with category B also works. DPR's certificate packet gives the path for the certificate.

• You must be 18, with a government document to prove it.
• You pass a 70 percent exam. For subcategory Q you take only the Q exam, which includes the laws and basic principles. For category B you take that core exam plus the category exam.
• The application fee is $90, and each exam is $115 including retakes. DPR may bill a $70 second-year fee to put you on the right two-year cycle.
• Applications are mailed to DPR. Once DPR has your application, the testing company PSI emails you to book a computer-based exam at one of its California test centers, per DPR's exam information sheet.

DPR's study materials page lists knowledge expectations for the Q exam, in English and Spanish. The packet adds that many of the suggested study materials end each chapter with practice questions. DPR publishes no practice test of its own on the pages we read.

The business license fees

The gardener packet states $180 per calendar year for a new license. A new license may run into a second year at another $180, depending on the first letter of your business name: A through L expire on December 31 of even years, M through Z (including "The") in odd years. The $360 renewal covers two years, and a late renewal costs 50 percent more, so $540 as DPR's 2026 renewal packet prints it. Mail is the only way in, because DPR can't take electronic submissions.

Renewing and continuing education

Certificates and licenses renew every two years on December 31. DPR's continuing education table puts a Q-only certificate holder at 8 hours of approved classes per full cycle, 2 of them on pesticide laws. A holder of category B or other categories needs 20 hours, 4 on laws. There is no grace period: miss the hours and you retake the exam as a new applicant. DPR's renewal page hosts the renewal packets, including the gardener business packet, and encourages A through L licensees to send applications by October 1.

Looking someone up

DPR publishes lists of valid licenses and certificates, indexed by name or county, at its licensee lists. The page warns that the lists are not legal records of licensing. The pesticide license table puts California beside the other states we have read.

After you are licensed

Before you work in a county you register the license with that county's agricultural commissioner. The qualified person brings the license, the QAC card and an inventory of your pest control equipment. Most counties charge an annual registration fee, and the packet points to a DPR page for them.

Records come next. The packet requires pest control application records for two years, and monthly pesticide use reports to the commissioner by the 10th. It also asks for annual proof of financial responsibility and, if you have staff, proof of workers' comp.