EPA Finalizes Rule to Protect Farmworkers, Families, and Communities from Pesticide Exposures

Dr Steven Brennan
Dr Steven Brennan
3 min readAI-drafted, expert reviewed
Spraying pesticides

Key takeaway

What this development means

The Environmental Protection Agency (EPA) has finalized a rule reinstating stricter Application Exclusion Zone (AEZ) requirements to safeguard farmworkers, their families, and nearby communities from pesticide exposure. The new rule, effective December 3, 2024, restores key protections from the 2015 Worker Protection Standard (WPS) that were weakened by a 2020 amendment. Key changes include extending the AEZ beyond farm property lines, requiring pesticide applications to be suspended if individuals are present within the zone, and enforcing stricter distance requirements based on spray quality. These measures are designed to reduce pesticide drift and the associated health risks for vulnerable populations. The rule has been welcomed by farmworker advocacy groups, who highlight the importance of these protections in preventing pesticide-related illnesses. However, some industry groups have raised concerns about the impact on smaller farms. This final rule reflects the EPA’s broader commitment to environmental justice and protecting vulnerable communities from chemical exposure.

What is the Application Exclusion Zone (AEZ) and how does it protect farmworkers?

The AEZ is a designated buffer area around pesticide application equipment that must remain clear of all individuals, except trained and equipped handlers, during pesticide spraying. This zone is designed to prevent pesticide drift, protecting farmworkers, their families, and nearby communities from exposure. Under the new rule, the AEZ applies both on and off farm property, ensuring that anyone near treated areas is safeguarded, even if they are outside the farm’s boundaries.

What are the key changes in the EPA’s new AEZ rule?

The EPA's new AEZ rule reinstates key protections from the 2015 Worker Protection Standard. One significant change is the extension of the AEZ beyond farm property lines, meaning pesticide applications must be paused if anyone enters the exclusion zone, even if they are off the farm. The rule also enforces stricter distance requirements, with the AEZ extending 100 feet for fine sprays and 25 feet for medium to large droplets, depending on the spray type. These updates aim to reduce the risk of pesticide exposure for farmworkers and nearby communities, ensuring broader protection against pesticide drift.

Source basis: https://www.regulations.gov/docket/EPA-HQ-OPP-2022-0133

The U.S. Environmental Protection Agency (EPA) has finalized a rule that strengthens protections for farmworkers, their families, and nearby communities from harmful pesticide exposure. This decision reinstates the Application Exclusion Zone (AEZ) requirements under the Worker Protection Standard (WPS), a move designed to ensure public health by preventing pesticide drift during agricultural applications. The new rule, set to take effect on December 3, 2024, restores key protections that were weakened by a 2020 amendment.

What Is the Application Exclusion Zone (AEZ)?

The AEZ is a buffer zone around pesticide application equipment that must remain clear of all individuals except trained and equipped handlers during pesticide applications. This zone moves with the application equipment, and any pesticide use must be suspended if people enter the AEZ. These provisions are critical to preventing pesticide drift, a major risk to farmworkers and bystanders, including those living near treated fields.

The rule revises the 2020 amendments, which restricted AEZ applicability to within the farm’s property lines and relaxed certain requirements on ground-based pesticide applications. Under the new rule, protections are extended to individuals both on and off the farm, safeguarding not only workers but also nearby communities from unintended pesticide exposure.

Key Changes in the New Rule

The EPA’s final AEZ rule brings back several key protections from the 2015 Worker Protection Standard, including:

Expanded AEZ Coverage: The AEZ now applies to individuals both on and off the farm. This means pesticide applications must be suspended if anyone—whether on the property or in neighboring areas—enters the AEZ, offering broader protection for people living or working near treated areas.Stricter Distance Requirements: For ground-based applications, the AEZ now extends 100 feet for fine sprays and 25 feet for medium to large droplets, depending on the application method.Protections for Workers and Families: The rule maintains the provision allowing farm owners and their immediate families to remain in enclosed structures during applications, but ensures no other workers or individuals are present within the AEZ unless they are trained pesticide handlers.

Why the Changes Matter

Pesticide exposure remains a significant concern for farmworkers, their families, and communities near agricultural fields. Pesticides can drift beyond treated areas, contaminating nearby environments and posing health risks such as skin irritation, respiratory issues, and chronic diseases, including cancer.

The EPA’s decision to revise the AEZ rule follows Executive Order 13990, which directed federal agencies to reexamine policies that impact vulnerable populations. Farmworkers—many of whom are immigrants—are at greater risk of pesticide exposure due to their proximity to treated areas. By reinstating these safeguards, the EPA aims to reduce pesticide-related risks for these communities.

Carolyn Schroeder, Chief of the Pesticide Re-Evaluation Division at the EPA, emphasized the importance of these protections: "This rule restores essential safeguards to protect farmworkers and their families from the harmful effects of pesticide exposure. By extending the AEZ beyond property lines, we are prioritizing public health and environmental justice."

Stakeholder Responses

The final AEZ rule has been met with strong support from farmworker advocacy groups and environmental organizations.

Nargess Shadbeh from the Oregon Law Center praised the EPA’s actions, saying: ‍

This is a significant victory for farmworkers and rural communities. For too long, families living near farms have been exposed to toxic chemicals without adequate protection. This rule helps bridge that gap.

Patti Goldman, an attorney with Earthjustice, highlighted the importance of protecting vulnerable populations:

Farmworkers and nearby communities are disproportionately affected by pesticide exposure. This rule will help reduce these risks and promote environmental justice.

However, some industry groups have expressed concern about the impact of the rule on farm operations. AmericanHort, a horticulture trade association, shared their perspective during a meeting with the EPA: ‍

While we support the protection of workers, we urge the EPA to provide clarity on compliance requirements and offer flexibility for smaller farms.

Looking Ahead

The new AEZ rule is a significant step forward in reducing pesticide exposure risks for farmworkers and nearby communities. Effective December 3, 2024, agricultural employers will be required to comply with the stricter AEZ guidelines to protect workers and the public during pesticide applications.

The EPA is also committed to increasing outreach and providing resources to ensure that farm operators and workers are fully aware of the changes. This rule reflects a broader focus on environmental justice, particularly for communities disproportionately affected by pesticide exposure.

Get weekly regulatory updates:

Related Articles

Join 3,500+ professionals staying ahead

Subscribe to Foresight Weekly for expert-picked regulatory developments across chemicals, sustainability, product safety, ESG, and HSE.

Free forever. Unsubscribe anytime.

Read by professionals at

Boeing
AstraZeneca
Siemens
PepsiCo
SpaceX