# Calcium Carbonate; Exemption From the Requirement of a Pesticide Tolerance

**Action Urgency Score:** 30/100

| Field | Value |
|---|---|
| Agency | Environmental Protection Agency |
| Type | Final rule |
| Action | Final rule. |
| Published | 2026-08-17 |
| Effective | 2026-08-17 |
| Significant | No |
| CFR parts | 40 CFR 180 |
| Summary | 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. |
| Document number | 2026-16720 |

## Why this score
- Final rule.

Source: Federal Register API (Office of the Federal Register) (https://www.federalregister.gov/documents/2026/08/17/2026-16720/calcium-carbonate-exemption-from-the-requirement-of-a-pesticide-tolerance). Last refreshed: 2026-11-03T19:10:06.902Z.
Data from the Federal Register API; the published Federal Register document is authoritative. Informational only, not legal advice.