CFR › Title 40 › Part 52 › §52.148640 CFR §52.1486Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗Copy link(a)The requirements of subpart G of this chapter are not met since the plan does not provide for the attainment and maintenance of the national standard for ozone in the Las Vegas Intrastate Region (§ 81.80 of this chapter).