Skip to main content
HR 4000 114th Congress House Environmental Protection Administrative law and regulatory procedures Air quality Environmental Protection Agency (EPA) Environmental regulatory procedures Licensing and registrations State and local government operations

Ozone National Ambient Air Quality Standard Deadline Harmonization Act of 2015

Introduced: February 1, 2016 See on congress.gov
This bill died when the 114th Congress ended
It never became law before the 114th Congress (2015–2016) adjourned, and bills don't carry over to the next Congress. It would have to be reintroduced. You can still save it for reference, but it won't receive updates.
 Everywhere this bill has been 3 steps
Introduced
In committee
Reported out
Passed House
Passed Senate
To President
Became law
Nov 20, 2015
Referred to the Subcommittee on Energy and Power.
Nov 16, 2015
Referred to the House Committee on Energy and Commerce.
Nov 16, 2015
Introduced in House
 Ask about this bill AI · grounded in the bill text

Have a question about what this bill does? Ask in plain English; the answer is drawn from the bill's actual text and official record, and it'll tell you when something isn't in the text rather than guess.

AI answers can be imperfect; always confirm against the full bill text.

 Plain-English summary Congressional Research Service

Ozone National Ambient Air Quality Standard Deadline Harmonization Act of 2015

This bill delays the implementation of the Environmental Protection Agency's (EPA) 2015 national ambient air quality standards (NAAQS) for ozone issued under the Clean Air Act.

Each state must designate all of its areas as attainment, nonattainment, or unclassifiable with respect to the 2015 ozone standards by October 26, 2024. The EPA must promulgate final designations for those areas by October 26, 2025. States must submit a state implementation plan for the 2015 ozone standards by October 26, 2026.

The 2015 ozone standards do not apply to the review and disposition of an application for a preconstruction permit for the construction or modification of a major emitting facility or major stationary source if: (1) the application is completed before final designations under the Clean Air Act, or (2) the applicable permitting authority publishes a public notice of a preliminary determination or draft permit for the application before a certain date.

The bill changes the interval by which the EPA must review its NAAQS for criteria pollutants from a 5-year review cycle to a 10-year review cycle. The EPA must not complete any review of ozone criteria or its ozone NAAQS before October 26, 2025, or propose any revisions to them.

What's happening now November 20, 2015

Referred to the Subcommittee on Energy and Power.

 Related & companion bills 2
 Bill text 1 version

Source documents hosted by congress.gov.

 Committees of jurisdiction 2
Cite this page click to expand
APA
U.S. Congress. (2026). H.R. 4000: Ozone National Ambient Air Quality Standard Deadline Harmonization Act of 2015. 114th Congress. Open America. https://openamerica.io/bill/114-HR-4000/
MLA
"H.R. 4000: Ozone National Ambient Air Quality Standard Deadline Harmonization Act of 2015." 114th Congress, 2026, Open America, https://openamerica.io/bill/114-HR-4000/.
Bluebook (legal)
H.R. 4000, 114th Cong. (2026), https://openamerica.io/bill/114-HR-4000/.
Markdown link
[H.R. 4000: Ozone National Ambient Air Quality Standard Deadline Harmonization Act of 2015](https://openamerica.io/bill/114-HR-4000/)
Report a problem