§ 52.1398 Control strategy: Sulfur dioxide.  


Latest version.
  • (a) Redesignation to attainment. The EPA has determined that the Billings 2010 sulfur dioxide (SO2) nonattainment area has met the criteria under CAA section 107(d)(3)(E) for redesignation from nonattainment to attainment for the 2010 1-hour SO2 NAAQS. The EPA is therefore redesignating the Billings 2010 SO2 nonattainment area to attainment.

    (b) The EPA is approving the maintenance plan for the Billings nonattainment area for the 2010 SO2 NAAQS submitted by the State of Montana on December 14, 2015.

    [81 FR 28720, May 10, 2016]

[81 FR 28720, May 10, 2016