Regulations last checked for updates: May 03, 2025

Title 40 - Protection of Environment last revised: Nov 03, 2025
All TitlesTitle 40Chapter IPart 52Subpart I - Subpart I—Delaware
View all text of Subpart I [§ 52.420 - § 52.465]
§ 52.424 - Conditional approval.

(a)-(d) [Reserved]

[62 FR 27197, May 19, 1997, as amended at 63 FR 1368, Jan. 9, 1998; 63 FR 16435, Apr. 3, 1998; 64 FR 32189, June 16, 1999; 64 FR 52660, Sept. 30, 1999; 64 FR 55141, Oct. 12, 1999; 66 FR 9211, Feb. 7, 2001; 66 FR 32234, June 14, 2001]
authority: 42 U.S.C. 7401
cite as: 40 CFR 52.424
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