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air-quality

Every record this desk has filed under air-quality, newest first, each with the number of sources it can still show you.

2 recordsNovember 5, 2026 – November 5, 2026All topics
  1. News1 receipt2 min

    EPA approves Maricopa vehicle emissions credits for use as stationary-source offsets

    EPA has approved a Maricopa County program that can generate emissions credits from voluntary reductions by on-road vehicle fleets. Those credits are intended to offset increases at major stationary sources under a permitting program. The federal rule takes effect December 7, 2026; an opposing commenter disputed whether the credits meet legal requirements.

    Also filed undermaricopa-countyemissionsepafederal-register

  2. News1 receipt2 min

    EPA proposes approval of the District of Columbia vehicle emissions inspection plan

    The Environmental Protection Agency is proposing to approve revisions to the District of Columbia's vehicle emissions inspection plan. The proposed federal action covers updates the District has already made and a demonstration concerning ozone requirements. Written comments must be received by December 7, 2026.

    Also filed undervehicle-inspectionswashington-dcfederal-registerepa

A record appears here because it carries air-quality in its own tags. If a record you expected is missing, it was filed under a different subject — the full list is on the topics index.