Whether your herbicide drift is covered depends on whether you carry chemical application coverage, because standard general liability commonly excludes pollution, which can include drift and overspray. A base GL policy may treat a drift claim as an excluded pollution loss. An applicator or pollution endorsement is what covers the chemical exposure, and it generally ties to holding the state applicator license required to spray commercially.
Why base GL may not cover drift
General liability is written with a broad pollution exclusion, and chemical drift or overspray can fall squarely inside it. A herbicide that drifts onto a neighbor’s yard, an overspray that damages a client’s lawn, or a misapplication that harms landscaping can be treated as a pollution claim your base GL does not cover. For a landscaper who sprays, that means the exact exposure of the work sits in an exclusion unless it is specifically addressed.
What an applicator endorsement adds
Coverage for chemical application generally comes through an applicator or contractors pollution endorsement written to cover the drift, overspray, and application damage the base GL excludes. The scope varies by form, so whether it covers drift onto neighboring property, and the specific chemicals and methods you use, is worth confirming. With the right endorsement, a drift claim can be covered rather than denied.
The licensing connection
Applying pesticides and herbicides commercially generally requires a state applicator license, and the licensing and the insurance work together. Operating without a required license creates regulatory and liability exposure and can affect your insurability, while a clean license supports your standing. Verify your state’s requirements with the licensing authority and make sure the coverage lines up with the work.
Questions to ask your advisor
- Does my policy cover chemical drift and overspray, or is it excluded?
- Do I have an applicator or pollution endorsement?
- Does the endorsement cover drift onto neighboring property?
- Is my state applicator license current for the work I do?
- Does the coverage match the specific chemicals and methods I use?
Chemical drift is one of the most predictable landscaping claims and one of the most commonly excluded. Base general liability’s pollution exclusion can sit right over your spray work, so an applicator endorsement that covers drift and overspray, matched to the chemicals you use and the license you hold, is what turns a killed-garden complaint into a covered claim instead of an out-of-pocket loss.