United States Government Publishing Office publisher pbl distributor dst United States National Archives and Records Administration Office of the Federal Register author aut Government Organization text government publication eng FR Regulatory Information 2000_register executive 2010-09-24 article Part IV Rules and Regulations D09002ee1c81f382f D09002ee1c81f393e United States Environmental Protection Agency originator org United States Government Agency or Subagency Today, EPA is rescinding its prior findings that the 1-hour ozone national ambient air quality standard (NAAQS) and the accompanying designations and classifications no longer apply in certain areas. As part of a transition to a new, more protective 8-hour ozone standard (promulgated in July 1997), in 1998 and 1999, EPA took final action determining that the 1-hour standard would no longer apply in almost 3,000 counties. Now, however, the public health protection that would be afforded by the 8-hour ozone standard is being delayed because continued litigation regarding the 8-hour ozone standard has created uncertainty regarding when and whether EPA may be able to fully implement that standard. It is important to have a fully enforceable Federal ozone standard to help protect people from the respiratory and other harmful effects of ozone pollution. Under this final rule, the designations and classifications that previously applied in such areas with respect to the 1-hour standard would also be reinstated. This rule will become effective in 90 days for most areas, and will become applicable in 180 days for areas with clean air quality data that had a nonattainment designation when the 1-hour standard was revoked. Furthermore, today EPA is taking final action to amend 40 CFR 50.9(b) to provide by rule that the 1-hour ozone standard will continue to apply to all areas notwithstanding promulgation of the 8-hour ozone standard; and that after the 8-hour standard has become fully enforceable under part D of title I of the Clean Air Act (CAA) and is no longer subject to further legal challenge, the 1-hour standard set forth in section 50.9(a) will no longer apply to an area once EPA determines that the area has air quality meeting the 1-hour standard. 65 FR 45182 https://www.govinfo.gov/app/details/FR-2000-07-20/00-17472 00-17472 fr20jy00-17 RIN 2060-ZA08 6560-50-P FRL-6733-3 https://www.govinfo.gov/app/details/FR-2000-07-20/00-17472 https://www.govinfo.gov/content/pkg/FR-2000-07-20/html/00-17472.htm https://www.govinfo.gov/content/pkg/FR-2000-07-20/pdf/00-17472.pdf Environmental Protection Air Pollution Control Carbon Monoxide Lead Nitrogen Dioxide Ozone Particulate Matter Sulfur Oxides National Parks Wilderness Areas 93 p. 45182 45274 65 FR 45182 Title 40 Part 50 40 CFR Part 50 Title 40 Part 81 40 CFR Part 81 RIN 2060-ZA08 Rescinding Findings That the 1-Hour Ozone Standard No Longer Applies in Certain Areas; Federal Register Vol. 65, Issue RULE 00-17472 IV ENVIRONMENTAL PROTECTION AGENCY 2000-10-18 FRL-6733-3 6560-50-P 00-17472 Final rule.

Today, EPA is rescinding its prior findings that the 1-hour ozone national ambient air quality standard (NAAQS) and the accompanying designations and classifications no longer apply in certain areas. As part of a transition to a new, more protective 8-hour ozone standard (promulgated in July 1997), in 1998 and 1999, EPA took final action determining that the 1-hour standard would no longer apply in almost 3,000 counties. Now, however, the public health protection that would be afforded by the 8-hour ozone standard is being delayed because continued litigation regarding the 8-hour ozone standard has created uncertainty regarding when and whether EPA may be able to fully implement that standard. It is important to have a fully enforceable Federal ozone standard to help protect people from the respiratory and other harmful effects of ozone pollution. Under this final rule, the designations and classifications that previously applied in such areas with respect to the 1-hour standard would also be reinstated. This rule will become effective in 90 days for most areas, and will become applicable in 180 days for areas with clean air quality data that had a nonattainment designation when the 1-hour standard was revoked. Furthermore, today EPA is taking final action to amend 40 CFR 50.9(b) to provide by rule that the 1-hour ozone standard will continue to apply to all areas notwithstanding promulgation of the 8-hour ozone standard; and that after the 8-hour standard has become fully enforceable under part D of title I of the Clean Air Act (CAA) and is no longer subject to further legal challenge, the 1-hour standard set forth in section 50.9(a) will no longer apply to an area once EPA determines that the area has air quality meeting the 1-hour standard.

Effective Date: This rule is effective on October 18, 2000. Questions about this final rule should Environmental Protection Air Pollution Control Carbon Monoxide Lead Nitrogen Dioxide Ozone Particulate Matter Sulfur Oxides National Parks Wilderness Areas Air programs: Ozone areas attaining 1-hour standard; identification of areas where standard will cease to apply; findings rescission, gilbert.barry@epa.gov nikbakht.annie@epa.gov http://www.epa.gov/ttn/oarpg Vol. 65, no. 140 Office of the Federal Register, National Archives and Records Administration 2000-07-20 continuing daily deposited born digital 340 p. Table of Contents: AE 2.7: GS 4.107: AE 2.106: KF70.A2 https://www.govinfo.gov/app/details/FR-2000-07-20 P0b002ee1809fd460 0097-6326 0042-1219 0364-1406 769-004-00000-9 000582072 f:fr20jy00 https://www.govinfo.gov/app/details/FR-2000-07-20 https://www.govinfo.gov/content/pkg/FR-2000-07-20/pdf/FR-2000-07-20.pdf https://www.govinfo.gov/content/pkg/FR-2000-07-20/xml/FR-2000-07-20.xml fdlp 44945 45274 DGPO 2010-09-24 2024-06-08 FR-2000-07-20 machine generated eng FR FR-2000-07-20 65 140