StacksVerified U.S. regulatory reference

40 CFR §51.917

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
The Las Vegas, NV, 8-hour ozone nonattainment area (designated on September 17, 2004 (69 FR 55956)) shall be treated as having an effective date of designation of June 15, 2004, for purposes of calculating SIP submission deadlines, attainment dates, or any other deadline under this subpart.