Citation

81 FR 23178

Multiple canonical documents share this first-page citation.

Air Plan Approval; Rhode Island; Infrastructure State Implementation Plan Requirements for Particle Matter, Ozone, Lead, Nitrogen Dioxide and Sulfur Dioxide Wednesday, April 20, 2016 81 FR 23175
Federal Register Vol. 81, No.76, April 20, 2016 Wednesday, April 20, 2016 81 FR 23178