Regulations last checked for updates: Feb 12, 2026

Title 40 - Protection of Environment last revised: Dec 22, 2026
All TitlesTitle 40Chapter IPart 51Subpart I - Subpart I—Review of New Sources and Modifications
View all text of Subpart I [§ 51.160 - § 51.166]
§ 51.163 - Administrative procedures.

The plan must include the administrative procedures, which will be followed in making the determination specified in paragraph (a) of § 51.160.

authority: 23 U.S.C. 101; 42 U.S.C. 7401-7671q.
source: 36 FR 22398, Nov. 25, 1971, unless otherwise noted.
cite as: 40 CFR 51.163
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