40 CFR § 180.478 - Rimsulfuron; tolerances for residues.

---
identifier: "/us/cfr/t40/s180.478"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 180.478 - Rimsulfuron; tolerances for residues."
title_number: 40
title_name: "Protection of Environment"
section_number: "180.478"
section_name: "Rimsulfuron; tolerances for residues."
chapter_name: "ENVIRONMENTAL PROTECTION AGENCY"
subchapter_number: "E"
subchapter_name: "PESTICIDE PROGRAMS"
part_number: "180"
part_name: "TOLERANCES AND EXEMPTIONS FOR PESTICIDE CHEMICAL RESIDUES IN FOOD"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "21 U.S.C. 321(q), 346a and 371."
regulatory_source: "36 FR 22540, Nov. 25, 1971, unless otherwise noted."
cfr_part: "180"
---


# 180.478 Rimsulfuron; tolerances for residues.

(a) *General.* Tolerances are established for residues of the herbicide rimsulfuron, including its metabolites and degradates, in or on the commodities in the following table. Compliance with the tolerance levels specified in the following table is to be determined by measuring only rimsulfuron, N-[[(4,6-dimethoxy-2-pyrimidinyl)amino] carbonyl]-3-(ethylsulfonyl)-2-pyridinesulfonamide.

| Commodity | Parts per million |
| --- | --- |
| Almond, hulls | 0.09 |
| Berry, low growing, except strawberry, subgroup 13-07H | 0.02 |
| Bushberry, subgroup 13-07B | 0.01 |
| Caneberry, subgroup 13-07A | 0.01 |
| Chicory, roots | 0.01 |
| Chicory, tops | 0.01 |
| Corn, field, forage | 0.4 |
| Corn, field, grain | 0.1 |
| Corn, field, stover | 2.5 |
| Fruit, citrus, group 10-10 | 0.01 |
| Fruit, pome, group 11-10 | 0.01 |
| Fruit, small, vine climbing, except fuzzy kiwifruit, subgroup 13-07F | 0.01 |
| Fruit, stone, group 12-12 | 0.01 |
| Grain, aspirated fractions | 4.5 |
| Nut, tree, group 14-12 | 0.01 |
| Pomegranate | 0.01 |
| Sorghum, grain, forage | 0.01 |
| Sorghum, grain, grain | 0.01 |
| Sorghum, grain, stover | 0.01 |
| Soybean, forage | 0.25 |
| Soybean, hay | 1.2 |
| Soybean, hulls | 0.04 |
| Soybean, seed | 0.01 |
| Tomato | 0.05 |
| Tropical and subtropical, small fruit, edible peel, subgroup 23A | 0.01 |
| Vegetable, tuberous and corm, subgroup 1C | 0.10 |

(b) *Section 18 emergency exemptions.* [Reserved]

(c) *Tolerances with regional registrations.* Tolerances with regional registrations, as defined in § 180.1(1), are established for residues of the herbicide rimsulfuron, including its metabolites and degradates, in or on the commodities in the following table. Compliance with the tolerance levels specific in the following table is to be determined by measuring only rimsulfuron, N-[[(4,6-dimethoxy-2-pyrimidinyl)amino] carbonyl]-3-(ethylsulfonyl)-2-pyridinesulfonamide.

| Commodity | Parts permillion |
| --- | --- |
| Fescue, forage | 0.01 |
| Fescue, hay | 0.01 |
| Ryegrass, perennial, forage | 0.01 |
| Ryegrass, perennial, hay | 0.01 |

(d) *Indirect or inadvertent residues.* [Reserved]

[63 FR 16696, Apr. 6, 1998, as amended at 72 FR 41913, Aug. 1, 2007; 74 FR 67137, Dec. 18, 2009; 77 FR 3625, Jan. 25, 2012; 77 FR 46306, Aug. 3, 2012; 80 FR 66805, Oct. 30, 2015; 83 FR 5947, Feb. 12, 2018; 88 FR 4735, Jan. 25, 2023]