Regulations last checked for updates: Feb 12, 2026

Title 40 - Protection of Environment last revised: Dec 22, 2026
§ 172.9 - Renewals.

Applications for renewal of experimental use permits and temporary tolerances, to provide for additional testing, shall be submitted prior to expiration of the permit. Requirements for renewals are the same as for applications under § 172.4, except that information previously submitted may be incorporated by reference.

authority: 7 U.S.C. 136c,136w. Section 172.4 is also issued under 31 U.S.C. 9701.
source: 40 FR 18782, Apr. 30, 1975, unless otherwise noted.
cite as: 40 CFR 172.9