40 CFR § 180.1072 - Poly--glucosamine (chitosan); exemption from the requirement of a tolerance.

---
identifier: "/us/cfr/t40/s180.1072"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 180.1072 - Poly--glucosamine (chitosan); exemption from the requirement of a tolerance."
title_number: 40
title_name: "Protection of Environment"
section_number: "180.1072"
section_name: "Poly--glucosamine (chitosan); exemption from the requirement of a tolerance."
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"
---


# 180.1072 Poly--glucosamine (chitosan); exemption from the requirement of a tolerance.

(a) An exemption from the requirement of a tolerance is established for residues of the biological plant growth regulator poly-*D*-glucosamine when used as a seed treatment in or on barley, beans, oats, peas, rice, and wheat.

(b) An exemption from the requirement of a tolerance is established for residues of the biological plant growth regulator poly-D-glucosamine when used as a pesticide in the production any raw agricultural commodity.

[60 FR 19524, Apr. 19, 1995]