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  1. Home
  2. Tribal Air and Climate Resources

Tribal Actions and Events Calendar

On this page:

  • Open Comment Periods and Other Actions
  • March 2025
  • April 2025
  • Previous Trainings and Other Resources 

On other pages:

  • Current Regulatory Agenda
  • Tribal Consultation Opportunities Tracking System (TCOTS) publicizes upcoming and current EPA consultation

This calendar includes the following information:

  • Upcoming outreach activities (e.g., rulemaking webinars, trainings)
  • National Tribal Council (NTC) monthly meetings,
  • National Tribal Air Association (NTAA) meetings,
  • Upcoming regulatory dates (e.g., expected rule proposal dates).
  • Previous Trainings and Webinars

For inquires or to add an entry to the calendar, please contact: Shojgreen.Ricardo@epa.gov or Kaufman.Amanda@epa.gov 

Open Comment Periods and Other Actions

Type of Action 

Action/ Rulemaking

Due Date

Proposed rule

Reconsideration of Standards of Performance for New, Reconstructed, and Modified Sources and Emissions Guidelines for Existing Sources: Oil and Natural Gas Sector Climate Review

3/3/2025

Proposed rule; correction

Reconsideration of Standards of Performance for New, Reconstructed, and Modified Sources and Emissions Guidelines for Existing Sources: Oil and Natural Gas Sector Climate Review; Correction

3/3/2025

Proposed rule

Review of New Source Performance Standards for Stationary Combustion Turbines and Stationary Gas Turbines

3/13/2025

Notice of availability and public comment period

Notice of Availability of One New Chapter in the Environmental Protection Agency’s Air Pollution Control Cost Manual—Dry Sorbent Injection

3/17/2025

Proposed rule

National Emission Standards for Hazardous Air Pollutants: Chemical Manufacturing Area Sources Technology Review

3/24/2025

Proposed rule; extension of public comment period

National Emission Standards for Hazardous Air Pollutants: Chemical Manufacturing Area Sources Technology Review; Comment Period Extension

4/14/2025

Proposed rule; request for comment; reopening of comment period

Standards of Performance for New Stationary Sources and Emission Guidelines for Existing Sources: Large Municipal Waste Combustors Voluntary Remand Response and 5- Year Review; Reopening of Comment Period

7/16/2025

March 2025

Mon

Tue

Wed

Thu

Fri

3

Proposed rule Reconsideration of Standards of Performance for New, Reconstructed, and Modified Sources and Emissions Guidelines for Existing Sources: Oil and Natural Gas Sector Climate Review Comments Due Today

Proposed rule; correction Reconsideration of Standards of Performance for New, Reconstructed, and Modified Sources and Emissions Guidelines for Existing Sources: Oil and Natural Gas Sector Climate Review; Correction Comments Due Today

4

5

6

7

10

11

12

13

Proposed rule Review of New Source Performance Standards for Stationary Combustion Turbines and Stationary Gas Turbines Comments Due Today

14

17

Notice of availability and public comment period Notice of Availability of One New Chapter in the Environmental Protection Agency’s Air Pollution Control Cost Manual—Dry Sorbent Injection Comments Due Today

18

19

20

21

24

Proposed rule National Emission Standards for Hazardous Air Pollutants: Chemical Manufacturing Area Sources Technology Review Comments Due Today

25

26

27

28

31

April 2025

Mon

Tue

Wed

Thu

Fri

1

2

3

4

7

8

9

10

11

14

Proposed rule; extension of public comment period National Emission Standards for Hazardous Air Pollutants: Chemical Manufacturing Area Sources Technology Review; Comment Period Extension Comments Due Today

15

16

17

18

21

22

23

24

25

28

29

30

   

Previous Training and Other Resources

Consultation with Tribes

Contact Us to ask a question, provide feedback, or report a problem.
Last updated on May 2, 2025
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