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S 638 114th Congress Senate Environmental Protection Administrative law and regulatory procedures Air quality Atmospheric science and weather Environmental Protection Agency (EPA) Environmental assessment, monitoring, research Environmental regulatory procedures

Commonsense Legislative Exceptional Events Reforms Act of 2015

Introduced: March 3, 2015 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
Jun 3, 2015
Committee on Environment and Public Works. Hearings held. Hearings printed: S.Hrg. 114-47.
Mar 3, 2015
Read twice and referred to the Committee on Environment and Public Works. (Sponsor introductory remarks on measure: CR S1253-1254)
Mar 3, 2015
Introduced in Senate
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 Plain-English summary Congressional Research Service

Commonsense Legislative Exceptional Events Reforms Act of 2015

This bill amends the Clean Air Act to revise the requirements for regulations that govern the review and handling of air quality monitoring data influenced by exceptional events. (The Environmental Protection Agency [EPA] may exclude monitored exceedances of the National Ambient Air Quality Standards from consideration when designating an area as nonattainment, redesignating an area as nonattainment, or reclassifying an existing nonattainment area to a higher classification if a state demonstrates that an exceptional event caused the exceedances.)

The criteria used to determine if an exceptional event was demonstrated must be specific in order to minimize the discretion of the EPA in approving or disapproving the demonstration.

The EPA must make a determination within 90 days after the submission of a petition by a state of an exceptional event demonstration. The demonstration is approved if the EPA does not make a determination by that deadline.

A determination must be based on a preponderance of the evidence and give substantial deference to the findings of the state exceptional event demonstration. An appeal process for reviewing a disapproval of a demonstration is established.

What's happening now June 3, 2015

Committee on Environment and Public Works. Hearings held. Hearings printed: S.Hrg. 114-47.

 Related & companion bills 1
 Bill text 1 version

Source documents hosted by congress.gov.

 Committees of jurisdiction 1
Cite this page click to expand
APA
U.S. Congress. (2026). S. 638: Commonsense Legislative Exceptional Events Reforms Act of 2015. 114th Congress. Open America. https://openamerica.io/bill/114-S-638/
MLA
"S. 638: Commonsense Legislative Exceptional Events Reforms Act of 2015." 114th Congress, 2026, Open America, https://openamerica.io/bill/114-S-638/.
Bluebook (legal)
S. 638, 114th Cong. (2026), https://openamerica.io/bill/114-S-638/.
Markdown link
[S. 638: Commonsense Legislative Exceptional Events Reforms Act of 2015](https://openamerica.io/bill/114-S-638/)
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