§ 52.1081 Control strategy: Particulate matter.
(a) Determination of Attainment. EPA has determined, as of January 12, 2009, the Maryland portion of the Metropolitan Washington, DC–MD–VA nonattainment area for the 1997 PM2.5 NAAQS has attained the 1997 PM2.5 NAAQS. This determination, in accordance with 40 CFR 52.1004(c), suspends the requirements for this area to submit an attainment demonstration and associated reasonably available control measures, a reasonable further progress plan, contingency measures, and other planning SIPs related to attainment of the standard for as long as the area continues to attain the 1997 PM2.5 NAAQS.
(b) Determination of Attainment. EPA has determined, as of November 20, 2009, the Martinsburg-Hagerstown, WV–MD PM2.5 nonattainment area has attained the 1997 PM2.5 NAAQS. This determination, in accordance with 40 CFR 52.1004(c), suspend the requirements for this area to submit an attainment demonstration, associated reasonably available control measures, a reasonable further progress plan, contingency measures, and other planning SIPs related to attainment of the standard for as long as this area continues to meet the 1997 PM2.5 NAAQS.