Citation

83 FR 12493

Multiple canonical documents share this first-page citation.

Approval of Implementation Plans; State of Iowa; Elements of the Infrastructure SIP Requirements for the 2010 Nitrogen Dioxide National Ambient Air Quality Standard (NAAQS) Thursday, March 22, 2018 83 FR 12491
Approval and Promulgation of Air Quality Implementation Plans; New Mexico; Infrastructure and Interstate Transport for the 2012 Fine Particulate Matter National Ambient Air Quality Standard and Revised Statutes Thursday, March 22, 2018 83 FR 12493
Federal Register Vol. 83, No.56, March 22, 2018 Thursday, March 22, 2018 83 FR 12493