Regulations last checked for updates: Jan 18, 2025

Title 40 - Protection of Environment last revised: Dec 30, 2025
All TitlesTitle 40Chapter IPart 62Subpart D - Subpart D—Arizona
View all text of Subpart D [§ 62.600 - § 62.660]
§ 62.631 - Identification of sources.

The plan applies to existing HMIWI for which construction was commenced on or before June 20, 1996, as described in 40 CFR part 60, subpart Ce.

authority: 42 U.S.C. 7401
source: 43 FR 51393, Nov. 3, 1978, unless otherwise noted.
cite as: 40 CFR 62.631
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