§52.1970. Identification of plan.
40 C.F.R. § 52.1970
Purpose and scope. This section sets forth the applicable State implementation plan for the State of Oregon under section 110 of the Clean Air Act, 42 U.S.C. 7401-7671q and 40 CFR Part 51 to meet national ambient air quality standards.
Incorporation by reference.
Material listed in paragraphs (c) and (d) of this section with an EPA approval date prior to February 1, 2026, was approved for incorporation by reference by the Director of the Federal Register in accordance with 5 U.S.C. 552(a) and 1 CFR part 51. Material is incorporated as it exists on the date of the approval and notification of any change in the material will be published in the Federal Register. Entries in paragraphs (c) and (d) of this section with EPA approval dates after February 1, 2026, will be incorporated by reference in the next update to the SIP compilation.
EPA Region 10 certifies that the rules/regulations provided by the EPA in the SIP compilation at the addresses in paragraph (b)(3) of this section are an exact duplicate of the officially promulgated State rules/regulations which have been approved as part of the State Implementation Plan as of the dates referenced in paragraph (b)(1) of this section.
Copies of the materials incorporated by reference may be inspected at the Region 10 EPA Office at 1200 Sixth Avenue, Suite 155, Seattle, WA 98101. To obtain the material, please call (206) 553-0256. You may inspect the material with an EPA approval date prior to February 1, 2026, for Oregon at the National Archives and Records Administration (NARA). For information on the availability of this material at NARA email [email protected] or go to http://www.archives.gov/federal-register/cfr/ibr-locations.html.
EPA approved regulations and statutes.
EPA approved state source-specific requirements.
EPA approved nonregulatory provisions and quasi-regulatory measures.
Notes, amendments, and revision history
Amendments
[78 FR 74015, Dec. 10, 2013, as amended at 79 FR 29360, May 22, 2014; 79 FR 35694, June 24, 2014; 80 FR 51472, Aug. 25, 2015; 80 FR 44867, July 28, 2015; 80 FR 45435, July 30, 2015; 80 FR 64350, Oct. 23, 2015; 80 FR 65659, Oct. 27, 2015; 81 FR 36178, June 6, 2016; 81 FR 47032, July 20, 2016; 81 FR 72716, Oct. 21, 2016; 82 FR 47126, Oct. 11, 2017; 83 FR 5539, Feb. 8, 2018; 83 FR 22854, May 17, 2018; 83 FR 24036, May 24, 2018; 83 FR 50276, Oct. 5, 2018; 84 FR 5002, Feb. 20, 2019; 84 FR 14274, Apr. 10, 2019; 84 FR 22377, May 17, 2019; 84 FR 26348, June 6, 2019; 84 FR 58325, 58329, Oct. 31, 2019; 85 FR 35199, June 9, 2020; 85 FR 43464, July 17, 2020; 86 FR 27979, May 25, 2021; 86 FR 43956, Aug. 11, 2021; 87 FR 29047, May 12, 2022; 87 FR 41257, July 12, 2022; 87 FR 51263, 51267, Aug. 22, 2022; 87 FR 77721, Dec. 20, 2022; 89 FR 59614, July 23, 2024; 89 FR 66995, Aug. 19, 2024; 89 FR 81384, Oct. 8, 2024; 90 FR 38014, Aug. 7, 2025; 90 FR 39127, Aug. 14, 2025; 91 FR 3825, Jan. 29. 2026; 91 FR 16554, Apr. 2, 2026; 91 FR 36997, June 22, 2026]
Authority
Authority: 42 U.S.C. 7401 et seq.
Amendments
[40 FR 5521, Feb. 6, 1975]
Amendments
[78 FR 74015, Dec. 10, 2013, as amended at 79 FR 29360, May 22, 2014; 79 FR 35694, June 24, 2014; 80 FR 51472, Aug. 25, 2015; 80 FR 44867, July 28, 2015; 80 FR 45435, July 30, 2015; 80 FR 64350, Oct. 23, 2015; 80 FR 65659, Oct. 27, 2015; 81 FR 36178, June 6, 2016; 81 FR 47032, July 20, 2016; 81 FR 72716, Oct. 21, 2016; 82 FR 47126, Oct. 11, 2017; 83 FR 5539, Feb. 8, 2018; 83 FR 22854, May 17, 2018; 83 FR 24036, May 24, 2018; 83 FR 50276, Oct. 5, 2018; 84 FR 5002, Feb. 20, 2019; 84 FR 14274, Apr. 10, 2019; 84 FR 22377, May 17, 2019; 84 FR 26348, June 6, 2019; 84 FR 58325, 58329, Oct. 31, 2019; 85 FR 35199, June 9, 2020; 85 FR 43464, July 17, 2020; 86 FR 27979, May 25, 2021; 86 FR 43956, Aug. 11, 2021; 87 FR 29047, May 12, 2022; 87 FR 41257, July 12, 2022; 87 FR 51263, 51267, Aug. 22, 2022; 87 FR 77721, Dec. 20, 2022; 89 FR 59614, July 23, 2024; 89 FR 66995, Aug. 19, 2024; 89 FR 81384, Oct. 8, 2024; 90 FR 38014, Aug. 7, 2025; 90 FR 39127, Aug. 14, 2025; 91 FR 3825, Jan. 29. 2026; 91 FR 16554, Apr. 2, 2026; 91 FR 36997, June 22, 2026]