40 CFR § 152.166 - Labeling of restricted use products.
---
identifier: "/us/cfr/t40/s152.166"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 152.166 - Labeling of restricted use products."
title_number: 40
title_name: "Protection of Environment"
section_number: "152.166"
section_name: "Labeling of restricted use products."
chapter_name: "ENVIRONMENTAL PROTECTION AGENCY"
subchapter_number: "E"
subchapter_name: "PESTICIDE PROGRAMS"
part_number: "152"
part_name: "PESTICIDE REGISTRATION AND CLASSIFICATION PROCEDURES"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "7 U.S.C. 136-136y; Subpart U is also issued under 31 U.S.C. 9701."
cfr_part: "152"
---
# 152.166 Labeling of restricted use products.
(a) *Products intended for end use.* A product whose labeling bears directions for end use and that has been classified for restricted use must be labeled in accordance with the requirements of § 156.10 of this chapter or other Agency instructions. The Agency will permit the use of stickers or supplemental labeling as an interim alternative to the use of an approved amended label, in accordance with § 152.167.
(b) *Products intended only for formulation.* A product whose labeling does not bear directions for end use (a product that is intended and labeled solely for further formulation into other pesticide products) is not subject to the labeling requirements of this subpart.