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Final ruleTook effect Aug. 17, 2026

Calcium Carbonate; Exemption From the Requirement of a Pesticide Tolerance

Built by the Tribune's code from the Federal Register. No AI wrote this page. Published in the Federal Register Aug. 17, 2026. Document 2026-16720. Updated Nov. 6, 2026.

What it does

This regulation establishes an exemption from the requirement of a tolerance for residues of calcium carbonate (CAS # 471-34-1), in or on all food commodities when used in accordance with label directions and good agricultural practices. Columbia River Carbonates, submitted a petition to EPA under the Federal Food, Drug, and Cosmetic Act (FFDCA), requesting an exemption from the requirement of a tolerance. This regulation eliminates the need to establish a maximum permissible level for residues of calcium carbonate in or on all food commodities, in accordance with the terms of the exemption.

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:

40 CFR 180

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 243 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.

What happens next and when

This regulation is effective August 17, 2026. Objections and requests for hearings must be received on or before October 16, 2026, and must be filed in accordance with the instructions provided in 40 CFR part 178 (see also Unit I.C. of this document).

The agency's dates, word for word.

Document number2026-16720
ActionFinal rule.
AgenciesEnvironmental Protection Agency
PublishedAug. 17, 2026
Effective dateAug. 17, 2026
DocketEPA-HQ-OPP-2022-0743

Source: the Federal Register (public domain). The document in the Federal Register