Modernizing New York State's Pesticide Neighbor Notification System

Replacing Postcard Notification with a Statewide Digital Database — and Extending Coverage to Rodenticides

Summary

The Pesticide Neighbor Notification Law (ECL Article 33) requires commercial lawn pesticide applicators to notify neighbors within 150 feet at least 48 hours before an application. This law has been in effect since 2001, but it relies on postcards and is opt-in by county. It leaves no permanent record, no aggregate visibility, and no disclosure at point of sale. We propose replacing the postcard system with a statewide digital database maintained by the NYS DEC, while preserving the pre-notification requirement. We also propose extending coverage to rodenticides, which are currently exempt but pose a serious threat to wildlife, particularly raptors.

68%

of NY red-tailed hawks carry anticoagulant rodenticide toxins (Cornell CVM)

77%

of dead raptors in NYC parks tested positive for rodenticide (NYS DEC, 2018–2023)

years since the postcard notification law took effect — unchanged

Background and Current Law

New York State's Pesticide Neighbor Notification Law (Environmental Conservation Law Article 33, implemented via 6 NYCRR Part 325, Section 41) took effect on March 1, 2001. The law requires commercial lawn pesticide applicators to provide written notice to neighboring properties within 150 feet at least 48 hours before an application. It operates as an opt-in framework: only counties that have adopted a local law are covered.

The mechanism for this notification is a postcard or written notice — a system essentially unchanged for over two decades. While that approach served a basic purpose when enacted, it is no longer adequate for modern environmental management, public health transparency, or data-driven policy.

The Problem with Postcards

No permanent record. Once a postcard is discarded, there is no record of what was applied, where, or when.
No aggregate visibility. Neither the state, counties, nor municipalities can identify patterns — heavy use near waterways, sensitive populations, or ecological zones.
No disclosure at point of sale. Prospective homebuyers have no way to learn about a property's pesticide history — a material environmental factor.
Uneven coverage. The opt-in framework leaves protection as a county-by-county patchwork. A statewide database would create uniform baseline data regardless of county action.
Research gaps. Cornell University and other institutions have sought to study pesticide trends, but data gaps have consistently limited this work.

The Proposal: A Statewide Pesticide Application Database

We propose amending Article 33 of the Environmental Conservation Law to require that commercial pesticide applicators submit application data to a centralized, publicly accessible statewide database maintained by the NYS Department of Environmental Conservation — in lieu of, or in addition to, the current postcard notification requirement.

Core Data Requirements

Applicator name and DEC registration/certification number
Property address and parcel identifier (tax map ID)
Date of application and product EPA registration number
Type of application (lawn, tree, shrub) and approximate area treated

This data is already required on postcard notifications. The change is not in what is collected, but in how it is stored, accessed, and used.

Public Access

The database should be searchable by address, parcel, municipality, and product — allowing:

Homeowners and renters to look up application history for any property
Prospective buyers and their agents to review pesticide use history as part of due diligence
Researchers and public health officials to analyze trends across neighborhoods, municipalities, and watersheds
Municipal planners to identify high-use areas relevant to stormwater management and ecologically sensitive zones

Pre-Notification Is Not Replaced

The existing 48-hour advance notification requirement serves a distinct and important purpose: giving neighbors time to take protective measures before exposure occurs. That requirement should be preserved. The database does not replace pre-notification — it adds a permanent, accessible record alongside it.

Extending Coverage: Rodenticides and the Threat to Raptors

The current Neighbor Notification Law covers commercial lawn pesticide applications but exempts rodenticide applications. This is a significant gap — and one with serious consequences for wildlife.

Secondary Poisoning and the Raptor Crisis

Anticoagulant rodenticides — rat and mouse poisons used widely by commercial pest control companies — do not kill rodents immediately. A poisoned rodent may remain active for several days, becoming slow and disoriented, making it easy prey for hawks, owls, and other predators. When raptors consume these animals, they ingest the toxin themselves. This is known as secondary poisoning.

A Cornell University College of Veterinary Medicine study found that 68% of red-tailed hawks in New York State have anticoagulant rodenticide toxins in their systems.

DEC data shows that 77% of 65 dead raptors found in and around New York City parks between 2018 and 2023 had detectable rodenticide levels in their livers.

The NYC Bird Alliance reports that rat poisons were detected in 84% of dead birds of prey examined by the DEC's Wildlife Unit in New York City. Since 2011, the Cornell vet school has confirmed 39 raptor deaths from rodenticide poisoning — red-tailed hawks, Cooper's hawks, great horned owls, a snowy owl, and others.

These figures represent a documented, ongoing wildlife mortality event — one that is largely invisible because rodenticide applications by commercial pest control companies are currently not subject to any public notification or reporting requirement.

The high-profile deaths of Flaco, the Eurasian eagle owl who escaped Central Park Zoo and was found to have four anticoagulant rodenticides in his body, and Barry, the beloved barred owl of Central Park who died in 2021 with a potentially lethal rodenticide burden, have raised public awareness. But these are visible cases. The harm to hundreds of less-famous raptors goes unrecorded.

Why Rodenticides Belong in the Database

Residents near a property where a commercial pest control company is applying second-generation anticoagulant rodenticides (SGARs) have no way to know.
Property owners who care about the hawks and owls on their land — or who keep pets — cannot make informed decisions about neighboring applications they are unaware of.
There is currently no aggregate data on where and how frequently SGARs are being used in residential and mixed-use areas of New York.

Proposed Rodenticide Reporting Requirements

Applicator name and DEC registration number
Property address and parcel identifier
Date of application, product name, and EPA registration number
Application method and approximate area or number of bait stations placed

The three second-generation anticoagulant rodenticides posing the greatest risk to raptors — brodifacoum, difethialone, and bromadiolone — are already restricted to licensed pest management companies by the EPA. Commercial applicators are already a defined, licensed population that can be held to a reporting requirement.

Policy Rationale

Environmental and Public Health

Pesticide drift, runoff into stormwater systems, and cumulative exposure in residential neighborhoods are documented public health concerns. A database would allow county health departments, the DEC, and researchers to identify geographic hotspots, correlate application patterns with health outcomes, and target education and enforcement more effectively.

Property Disclosure

New York already requires disclosure of numerous environmental conditions at the point of property sale. Pesticide and rodenticide application history is a material environmental factor — particularly for properties near wetlands or streams, or in households with young children — and belongs in the same category.

Precedent and Feasibility

New York State already maintains complex environmental databases: the New York Protected Areas Database (NYPAD), the Environmental Resource Mapper, the NYS Pesticide Administration Database for applicator licensing, and others. Extending this infrastructure to application records is a natural evolution. The data fields required are modest and largely exist already in applicator recordkeeping.

Conservation Data as Civic Infrastructure

This proposal reflects a broader principle: that collecting and surfacing environmental data — rather than relying on ephemeral paper notices — creates lasting civic value. Local governments, conservation boards, and residents need tools to see what is happening in their own neighborhoods, not just to comply with law, but to make informed decisions.

Proposed Legislative Path

Amend ECL Article 33 to require electronic submission of application records to DEC by all commercial lawn pesticide applicators statewide, as a condition of licensure.
Extend the requirement to commercial rodenticide applications, using the existing licensing framework for restricted-use pesticide applicators as the point of entry.
Direct DEC to establish and maintain a publicly searchable database of these records within 18 months of enactment.
Require DEC to publish annual summary reports on application trends by county and municipality.
Authorize DEC to partner with universities — including Cornell's College of Veterinary Medicine and Wildlife Health Program — to support research use of the database.

A statewide mandate is preferable to the current opt-in county framework. Because applicators are licensed by the state, a state-level reporting requirement is the most efficient and equitable point of intervention. Counties that have already adopted local notification laws would not be preempted; the database requirement would supplement rather than displace existing local laws.

Conclusion

Postcards were a reasonable solution in 2001. They are not adequate in 2025.

New York State has the infrastructure, the legal framework, and the policy interest to modernize pesticide neighbor notification into a genuine public information system. Extending that system to cover rodenticides would address a documented and growing threat to raptors and wildlife — one that Cornell researchers, DEC wildlife staff, and organizations across the state are already raising the alarm about.

These changes would cost commercial applicators nothing beyond an online submission that takes less time than addressing a postcard. The return — in public health insight, environmental data, wildlife protection, property disclosure, and research value — is substantial.