Pesticide Tolerances; Implementing Registration Review Decisions for Certain Pesticides; Maleic Hydrazide, et al.
Built by the Tribune's code from the Federal Register. No AI wrote this page. Published in the Federal Register Feb. 27, 2026. Document 2026-03942. Updated Nov. 14, 2026.
- What it does
The Environmental Protection Agency (EPA or Agency) is finalizing several pesticide tolerance actions under the Federal Food, Drug, and Cosmetic Act (FFDCA) that the Agency previously determined were necessary or appropriate during the registration review conducted under the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA). During registration review, EPA reviews all aspects of a pesticide case, including existing tolerances, to ensure that the pesticide continues to meet the standard for registration under FIFRA. The Agency is also finalizing tolerance actions identified outside of registration review as housekeeping measures, such as removing expired tolerances from the Code of Federal Register (CFR). The pesticide tolerances and active ingredients addressed in this rulemaking are identified and discussed in detail in Unit III. of this document.
The Environmental Protection Agency's summary, as published in the Federal Register.
- What changed in the regulation
1 part of Title 40 of the Code of Federal Regulations:
Wording on eCFR: the day before it took effect and from the day it took effect (first part listed).
- Compared with
The Environmental Protection Agency has published 248 final rules in 2026 so far, compared with 263 in all of 2025.
Counted by the Tribune from Federal Register records since Jan. 1, 2025.
- Before this
7 earlier Federal Register documents under regulation identifier 2070-ZA16 since Jan. 1, 2025.
- Feb. 20, 2026 Final rule. Pesticide Tolerances; Implementing Registration Review Decisions for Certain Pesticides; Diphenylamine, et al.
- Feb. 20, 2026 Final rule. Pesticide Tolerances; Implementing Registration Review Decisions for Certain Pesticides; Terbacil, et al.
- Dec. 11, 2025 Proposed rule. Pesticide Tolerances; Implementing Registration Review Decisions for Certain Pesticides; Atrazine, et al.
- Aug. 8, 2025 Supplemental notice of proposed rulemaking. Fenoxaprop-Ethyl, Flufenpyr-Ethyl, Imazapyr, Maleic Hydrazide, Pyrazon, Quinclorac, Triflumizole, et al.; Tolerance and Tolerance Exemption Actions
- June 10, 2025 Final rule. Pesticide Tolerances; Implementing Registration Review Decisions for Certain Pesticides (Capric (Decanoic) Acid, Caprylic (Octanoic) Acid, and Pelargonic (Nonanoic) Acid)
- June 9, 2025 Proposed rule. Pesticide Tolerances; Implementing Registration Review Decisions for Certain Pesticides; Hydrogen Cyanide, et al.
- May 22, 2025 Proposed rule. Pesticide Tolerances; Implementing Registration Review Decisions for Certain Pesticides; Diphenylamine, et al
Since then:
- What happens next and when
This rule is effective on February 27, 2026. Objections and requests for hearings must be received on or before April 28, 2026 and must be filed in accordance with the instructions provided in 40 CFR part 178 (see also Unit I.D. of this document).
The agency's dates, word for word.
The record as published
| Document number | 2026-03942 |
|---|---|
| Action | Final rule. |
| Agencies | Environmental Protection Agency |
| Published | Feb. 27, 2026 |
| Effective date | Feb. 27, 2026 |
| Regulation identifier (RIN) | 2070-ZA16 |
| Docket | EPA-HQ-OPP-2017-0418 |
Source: the Federal Register (public domain). The document in the Federal Register