3.1 FIFRA, Federal Registration, WPS & Bulletins Live! Two

Key Takeaways

  • FIFRA authorizes federal registration and makes use inconsistent with labeling unlawful; Maine adds separate registration and use requirements.
  • Sections 3, 24(c), 18, and 25(b) cover different registration or exemption pathways, and a federal 25(b) exemption does not waive Maine product registration.
  • WPS protects covered agricultural workers and handlers through training, information, decontamination, PPE, REIs, early-entry controls, and emergency assistance.
  • The moving outdoor AEZ can be 25 or 100 feet, and the current WPS requires suspension when unprotected people are inside it, including in covered off-establishment areas.
  • When the label directs use of Bulletins Live! Two, obtain the Bulletin no more than six months before application and follow the version for the location, product, and month.
Last updated: September 2026

FIFRA, Federal Registration, WPS, and Endangered Species Directions

Federal pesticide law establishes product registration and label controls. Maine adds product registration, licensing, categories, notification, records, and use restrictions. An applicator must satisfy both systems.

FIFRA and registration paths

The Federal Insecticide, Fungicide, and Rodenticide Act authorizes EPA pesticide registration and makes it unlawful to use a registered pesticide in a manner inconsistent with its labeling.

Common authorities include:

  • Section 3 registration for ordinary federal product uses;
  • Section 24(c) special local need registration for a state-approved additional use, subject to federal law;
  • Section 18 emergency exemptions for defined urgent situations; and
  • Section 25(b) exemption from federal registration for products that meet all minimum-risk conditions.

A 25(b) product is not exempt from every state rule. Maine requires pesticide products, including qualifying federal minimum-risk products, to be registered before distribution unless a statutory exception applies.

EPA registration is based on whether the product can perform its intended function without unreasonable adverse effects when used according to labeling. Registration does not mean “nontoxic,” and it does not guarantee safety when directions are ignored.

General and restricted use

A product may be unclassified or classified for restricted use, either for all uses or specified uses. A Restricted Use Pesticide label carries the required restricted-use statement and identifies why the restriction applies and who may use it.

Certified applicator status does not erase label supervision language. The certified applicator, supervised person, site, category, and physical availability must satisfy the current federal label and Maine rules. Maine can also designate state restricted- or limited-use products through Chapter 40.

Labeling and Section 2(ee)

The container label, attached booklets, supplemental labels, state registrations, and referenced enforceable materials can all form part of labeling. Section 2(ee) of FIFRA identifies limited situations that are not considered use inconsistent with labeling unless the label specifically prohibits them. Examples include using a lower dosage or concentration, treating a target pest not listed when the crop or site is listed, using an unprohibited application method, or mixing with a fertilizer when not prohibited.

These are not broad off-label permissions. They do not authorize an unlisted crop or site, a rate above the maximum, a prohibited method, ignored PPE, a missed REI, or a use inconsistent with a Section 18 or 24(c) condition.

Worker Protection Standard

The Worker Protection Standard, 40 C.F.R. part 170, protects workers and pesticide handlers on agricultural establishments producing agricultural plants, including covered farms, forests, nurseries, and enclosed-space production. “Worker” and “handler” have different duties; a mixer, loader, applicator, equipment cleaner, or person performing another handler task needs handler protections.

Core employer duties include annual EPA-approved safety training before covered work, accessible pesticide safety and application information, decontamination supplies, emergency assistance, notification of treated areas, REI compliance, protections for early entry, safe equipment, and label-required PPE.

When a label requires a respirator, the agricultural employer provides medical evaluation, fit testing, training, and compliant equipment. Commercial handler employers and agricultural-establishment operators must exchange required application and hazard information.

Application Exclusion Zone

The AEZ surrounds outdoor application equipment during a WPS-covered application and moves with it. Depending on application method and droplet size, it can be 25 or 100 feet. EPA's current rule restored the requirement to suspend an application when a person other than an appropriately trained and equipped handler involved in the application is within the AEZ, including where the AEZ extends off the agricultural establishment and in covered easement areas.

The AEZ exists only during the application. It is separate from the treated-area REI, which begins with the application and controls later worker entry. Never treat the AEZ as a fixed property setback or a Maine Notification Registry distance.

Food tolerances

The Federal Food, Drug, and Cosmetic Act authorizes pesticide residue tolerances for food. The Food Quality Protection Act established the “reasonable certainty of no harm” safety standard and requires consideration of aggregate exposure and protections for infants and children.

The applicator's role is to follow crop, rate, timing, maximum seasonal amount, and preharvest interval directions. Exceeding them can create an illegal residue even if pests remain.

Endangered Species Protection Bulletins

When a product label directs the user to Bulletins Live! Two, the applicable Bulletin is enforceable labeling. Search using the intended application area, product or active ingredient as directed, and application month. Obtain the Bulletin no more than six months before the application and keep the version used with job records.

A Bulletin can impose a pesticide use limitation area, timing restriction, buffer, runoff measure, or other mitigation. If the label does not direct the user to Bulletins Live! Two, federal law does not independently require a search for that product, though voluntary awareness is encouraged. Maine restrictions still apply in either case.

Compliance sequence

  1. Confirm current federal and Maine product registration.
  2. Read the entire label and all referenced labeling.
  3. Verify license, category, and restricted-use supervision.
  4. Apply WPS protections when the establishment and task are covered.
  5. Obtain the correct Bulletin when the label directs it.
  6. Check Maine site, notice, water, weather, record, and permit rules.
  7. Document the version and conditions used.

Federal registration, Maine registration, applicator licensing, and site authorization are separate gates. Passing one does not waive the others.

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Federal Compliance Gates
Test Your Knowledge

What does a FIFRA Section 25(b) exemption establish?

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Test Your Knowledge

What is the WPS Application Exclusion Zone?

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When must an applicator comply with a Bulletins Live! Two limitation?

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Test Your Knowledge

Which action is outside FIFRA Section 2(ee)'s limited flexibility?

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