This page contains reasonable available control technology (RACT) information through guidance, policy memos and Qs and As for ozone nonattainment areas.You may need a PDF reader to view some of the files on this page. See EPA’s About PDF page to learn more.
State Implementation Plans; General Preamble for Proposed Rulemaking on Approval of Plan Revisions for Nonattainment Areas- Supplement (on Control Technique Guidelines) (PDF)(5 pp, 482 K,
September 17, 1979,
FR. Vol. 44, No. 181)
State Implementation Plans; General Preamble for Proposed Rulemaking on Approval of Plan Revisions for Nonattainment Areas- Supplement (on Control Technique Guidelines)
Criteria for Determining RACT in Region IV (PDF)(3 pp, 918 K,
June 19, 1985)
Methodology for judging the technological and economic feasibility of emissions controls to be designated RACT for industrial installation.
"Once-in/Alway-in" Requirement for Applicability (PDF)(2 pp, 678 K,
August 23, 1990)
Guidance to states and regions regarding "once-in"/"always-in" concept for applicability of RACT requirements as stated in the May 25, 1988 Blue Book.
RACT Qs and As - Reasonably Available Control Technology (RACT) Questions and Answers (PDF)(15 pp, 193 K,
May 18, 2006)
RACT questions and answers on RACT implementation.
RACT Requirements in Ozone Nonattainment Areas (PDF)(2 pp, 15 K,
December 1, 1988)
RACT requirements for automobile assembly plants in ozone nonattainment areas.
Issues Relating to VOC Regulation, Cutpoints, Deficiencies, and Deviations (PDF)(121 pp, 2 MB,
Clarification to Appendix D of November 24, 1987 FEDERAL REGISTER)
Clarification of areas in Appendix D in which RACT for VOCs have not been adopted and/or implemented on a nationally consistent basis.
Approval Options for Generic RACT Rules Submitted to Meet the non-CTG VOC RACT Requirement and Certain NOx RACT Requirements (PDF)(8 pp, 623 K,
November 7, 1996)
Potential rulemaking options for certain VOC and NOx submissions pursuant to RACT requirements under section 182(b) (2) and (f) of the CAA.
- Memo: Implementing Reasonably Available Control Technology Requirements for Sources Covered by the 2016 Control Techniques Guidelines for the Oil and Natural Gas Industry (PDF)(8 pp, 5 MB, October 20, 2016, EPA-453/B-16-001)