Citation
79 FR 49454
Multiple canonical documents share this first-page citation.
- Approval and Promulgation of Air Quality Implementation Plans; Colorado; Revisions to Regulation Number 1; Correction 79 FR 49454
- Approval and Promulgation of State Implementation Plans; Hawaii; Infrastructure Requirements for the 2008 8-Hour Ozone and the 2010 Nitrogen Dioxide National Ambient Air Quality Standards 79 FR 49454