Citation

81 FR 7980

Multiple canonical documents share this first-page citation.

Approval of Iowa's Air Quality Implementation Plans; Polk County Board of Health Rules and Regulations, Chapter V, Revisions Wednesday, February 17, 2016 81 FR 7978
Approval and Promulgation of Implementation Plans; State of New Mexico/Albuquerque-Bernalillo County; Infrastructure and Interstate Transport SIP 2010 Nitrogen Dioxide National Ambient Air Quality Standards Wednesday, February 17, 2016 81 FR 7980
Federal Register Vol. 81, No.31, February 17, 2016 Wednesday, February 17, 2016 81 FR 7980