Citation

81 FR 62814

Multiple canonical documents share this first-page citation.

Approval of Air Quality Implementation Plans; Puerto Rico; Infrastructure Requirements for the 1997 and 2008 Ozone, 1997 and 2006 Fine Particulate Matter and 2008 Lead NAAQS Tuesday, September 13, 2016 81 FR 62813
Federal Register Vol. 81, No.177, September 13, 2016 Tuesday, September 13, 2016 81 FR 62814