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Regulations last checked for updates: May 16, 2025
Title 40 - Protection of Environment last revised: Nov 16, 2025
All Titles
Title 40
Chapter I
Part 51
Subpart BB - Subpart BB—Data Requirements for Characterizing Air Quality for the Primary SO2 NAAQS
§ 51.1200 - Definitions.
§ 51.1201 - Purpose.
§ 51.1202 - Applicability.
§ 51.1203 - Air agency requirements.
§ 51.1204 - Enforceable emission limits providing for attainment.
§ 51.1205 - Ongoing data requirements.
authority:
23 U.S.C. 101
;
42 U.S.C. 7401-7671q.
source:
36 FR 22398, Nov. 25, 1971, unless otherwise noted.
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