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Juneau State Office Mailing Address Update

All mail sent to the DEC office in Juneau through the U.S. Postal Service must be addressed to P.O. Box 111800, Juneau, AK, 99811. Beginning October 1, all mail addressed to our Willoughby Avenue address will not be delivered and will be returned to sender by the Post Office. This change only impacts incoming mail to the Juneau office.

Transportation Conformity

Transportation conformity is required by the Clean Air Act (CAA) Section 176(c) which ensures that Federal (FHWA/FTA) funding and approval are given to transportation (highway/transit) activities that are consistent with air quality goals. It is a link between Transportation and Air Quality planning ensuring that transportation improvement programs (TIPs) and Federal projects must conform to the purpose of the SIP.

Conformity to a SIP means that such activities will not:

  • Cause or contribute to any new violations of the national ambient air quality standards (NAAQS)
  • Increase the frequency of severity of NAAQS violations
  • Delay timely attainment of the NAAQS or any required interim milestone

Transportation conformity only addresses air pollution from on-road mobile sources such as cars, trucks and transit in areas that are designated as nonattainment or maintenance for the following pollutants and their appropriate precursors:

  • Ozone (O3);
  • Particulate matter (PM10 and PM2.5);
  • Nitrogen dioxide (NO2); and
  • Carbon monoxide (CO)

Transportation activities subject to transportation conformity are:

  • Metropolitan transportation plans
  • Metropolitan transportation improvement programs (TIPs)
  • Federal projects receiving FHWA/FTA funding or approvals