Tap any paragraph to write a margin note. Your notes collect in the Desk below the text and file under cases with @. The side-by-side margin rail opens on a larger screen.

§
Marginalia
Code · CFR · Title 40 — Protection of Environment · Part 52 · § 52.147

§ 52.147. Interstate transport.

293 words·~1 min read·/us/cfr/t40/s§ 52.147·

A research copy — for the controlling text, always check the official state or federal source. Not legal advice.

(a)Approval. The SIP submitted on May 24, 2007 meets the requirements of Clean Air Act section 110(a)(2)(D)(i)(I) (contribute significantly to nonattainment or interfere with maintenance of the NAAQS in any other state) and section 110(a)(2)(D)(i)(II) (interfere with measures in any other state to prevent significant deterioration of air quality, only) for the 1997 8-hour ozone and 1997 PM2.5 NAAQS.
(b)Disapproval. The SIPs submitted on May 24, 2007, February 28, 2011, and May 3, 2013 do not meet the requirements of Clean Air Act section 110(a)(2)(D)(i)(II) (interfere with measures in any other state to protect visibility, only) for the 1997 8-hour ozone and 1997 PM2.5 NAAQS.
(c)Approval. The SIP submitted on October 14, 2009 meets the requirements of Clean Air Act section 110(a)(2)(D)(i)(I) (contribute significantly to nonattainment or interfere with maintenance of the NAAQS in any other state) for the 2006 PM2.5 NAAQS.
(d)Disapproval. The SIPs submitted on October 14, 2009 and August 24, 2012 do not meet the requirements of Clean Air Act section 110(a)(2)(D)(i)(II) (interfere with measures in any other state to prevent significant deterioration of air quality, only) for the 2006 PM2.5 NAAQS.
(e)Disapproval. The SIPs submitted on October 14, 2009, February 28, 2011, and May 3, 2013 do not meet the requirements of Clean Air Act section 110(a)(2)(D)(i)(II) (interfere with measures in any other state to protect visibility, only) for the 2006 PM2.5 NAAQS.
(f)Disapproval. The SIPs submitted on December 11, 2015 and September 24, 2018 do not meet the requirements of Clean Air Act section 110(a)(2)(D)(i)(II) (interfere with measures in any other state to protect visibility, only) for the 2012 PM2.5 NAAQS and the 2015 ozone NAAQS, respectively. [78 FR 46175, July 30, 2013, as amended at 89 FR 102773, Dec. 18, 2024]
★   the supreme law of the land   ★
Don't Tread on Me
E Pluribus Unum — out of many, one

"If you don't know your rights, you don't have any."

Marginalia · a citizen's law index
A research desk, not legal advice. Always read the cited source before relying on a summary.
Questions or an issue? support@self-law.org
disclaimerMarginalia is a research index, not a law firm. Nothing on this site is legal, tax, or financial advice and no attorney–client relationship is formed by using it. Statutes, regulations, and case law change; summaries, search results, AI output, and member posts may be incomplete, out of date, or wrong. Any interpretation drawn from material on this site should be validated by a licensed attorney in your jurisdiction before you act on it.