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Navajo Nation Part 71 Delegation Agreement

Navajo Nation EPA (NNEPA) has a part 71 Delegation of Authority for the Title V Operating Permit Program. Region 9 determined that the NNEPA meets the eligibility requirements for treatment in the same manner as a state ("TAS") for the purpose of entering into the delegation agreement and waived our collection of Part 71 permit fees for those sources covered by the Delegation of Authority. In 2006, the delegation agreement and TAS determination were supplemented to include title V permitting responsibilities for the Navajo Generating Station and the Four Corners Power Plant. In 2020, the delegation and TAS determination were supplemented again to include the area known as the Former Bennett Freeze. Documents related to NNEPA’s Delegation of Authority are available through the links below.

Actions Related to Navajo Nation EPA’s (NNEPA) Part 71 Delegation of Authority
for the Title V Operating Permit Program under 40 CFR Part 71

Action Status Date Docket ID
Part 71 Delegation Agreement and
Treatments as State (TAS)
Effective 10/15/2004 EPA-R09-OAR-2019-0479
Supplemental Delegation and
Treatments as State (TAS) for Power Plants
Effective 3/21/2006 EPA-R09-OAR-2019-0480
2020 Supplemental Delegation
and Treatments as State (TAS) for Former Bennett Freeze
Effective 7/28/2020 EPA-R09-OAR-2019-0471