REGULATORY HISTORY OF 40 CFR PART 68

Prepare and Stay Aware!

DATE	ACTION	FEDERAL REGISTER CITATION
Jan. 19, 1993	List Rule Proposed	58 FR 5102
Oct. 20, 1993	Risk Management Program for Chemical Accidental Release Prevention; Proposed Rule	58 FR 54190
Jan. 31, 1994	List of Regulated Substances and Thresholds for Accidental Release Prevention and Risk Management Programs for Chemical Accident Release Prevention; Final Rule and Notice	59 FR 4478 (effect. March 2, 1994)
Jan. 31, 1994	List of Regulated Substances for Accidental Release Prevention Under Section 112(r) of the Clean Air Act As Amended; Risk Management Programs for Chemical Accident Release Prevention Under Section 112(r)(7) Of the Clean Air Act As Amended; Supplemental Notice [flammables Used solely for fuels]	59 FR 4500
March 13, 1995	Accidental Release Prevention Requirements: Risk Management Programs Under Clean Air Act Section 112(r)(7); Supplemental Notice [Discusses tiered program approach, use of inherently safer technology(IST), accident info Reporting, public participation]	60 FR 13526
April 15, 1996	List of Regulated Substances and Thresholds for Accidental Release Prevention; Proposed Rule [proposed deletion of Division 1.1 Explosives from RMP coverage, Proposed exemption of regulated flammable substances in gasoline Used as fuel, proposed clarification Of provision for threshold Determination of a flammable Substance in a mixture, modify Definition of stationary source]	61 FR 16598
April 15, 1996	List of Regulated Substances and Thresholds for Accidental Release Prevention; Proposed Stay of Effectiveness and Proposed Rule [see above notice for details]	61 FR 16606
June 20, 1996	Accidental Release Prevention Requirements: Risk Management Programs Under Clean Air Act Section 112(r)(7); (aka Program Rule) Final Rule	61 FR 31668 (effect. 8/19/96)
June 20, 1996	List of Regulated Substances and And Thresholds for Accidental Release Prevention; Final Rule - Stay of Effectiveness [promulgates The stay proposed on 4/15/96]	61 FR 31730 (effect. 6/20/96)
June 20, 1996	Accidental Release Prevention Requirements: Risk Management Programs Under Section 112(r)(7) Of the Clean Air Act As Amended; Guidances Notice of Availability [RMP Offsite Consequence Analysis Guidance, Model RMP for Ammonia Refrigeration Facilities, RMP Plan Data Elements]	61 FR 31733
May 22, 1997	List of Regulated Substances and Thresholds for Accidental Release Prevention; Proposed Rule Amendments [raising the de minimus Concentration of hydrochloric acid From 30 to 37% for threshold quantity Determinations, per EPA Settlement With General Electric]	62 FR 27992
August 25, 1997	Accidental Release Prevention Requirements; Interpretations [threshold quantities for listed Solutions; relationship to certain TSCA reporting requirements]	62 FR 45134 (effect. 8/25/97)
August 25, 1997	List of Regulated Substances and Thresholds for Accidental Release Prevention; Final Rule [adopts Without modification the 5/22/97 proposal]	62 FR 45130 (effect. 8/25/97)
Jan. 6, 1998	List of Regulated Substances and Thresholds for Accidental Release Prevention; Final Rule Amendments [EPA takes final action on Amendments proposed on 4/15/96]	63 FR 640 (effect. 1/6/98)
April 17, 1998	Accidental Release Prevention Requirements: Risk Management Programs Under Clean Air Act Section 112(r)(7); Proposed Rule Amendments [use of new NAICS Codes, RMP Data Elements, Clarification of prevention program Reporting, confidential business Information (CBI) handling, and Other changes]	63 FR 19216
Jan. 6, 1999	Accidental Release Prevention Requirements; Risk Management Programs Under Clean Air Act Section 112(r)(7); Final Rule Amendments [EPA takes final Action on amendments proposed On 4/17/98]	64 FR 964 (effect. 2/5/99)
May 26, 1999	Accidental Release Prevention Requirements: Risk Management Programs Under Clean Air Act Section 112(r)(7); Amendments to The Worst-Case Release Scenario Analysis for Flammable Substances; Direct Final Rule [EPA clarifies Criteria in determining the worst- Case release scenario for flammable Substances in response to a settlement With the American Petroleum Institute (API) and the Chlorine Institute (CI), Also clarifying Sections 112(l) and 112(r)(11) relating to the Dept. of Transportation’s requirements Under the federal Hazardous Materials Transportation Law]	64 FR 28696 (effect. 6/21/99)
May 26, 1999	Accidental Release Prevention Requirements: Risk Management Programs Under Clean Air Act Section 112(r)(7); Amendments to The Worst-Case Release Scenario Analysis for Flammable Substances; Proposed Rule [see above notice]	64 FR 28702
May 28, 1999	List of Regulated Substances and Thresholds for Accidental Release Prevention; Stay of Effectiveness for Flammable Hydrocarbon Fuels; Final Rule [EPA provides a 6-month stay Of effectiveness of the RMP rule as It applies to processes containing no More than 67,000 pounds of certain Flammable hydrocarbon fuels, etc.]	64 FR 29168 (effect. 6/21/99)
May 28, 1999	List of Regulated Substances and Thresholds for Accidental Release Prevention; Flammable Hydrocarbon Fuel Exemption; Proposed Rule [see above notice]	64 FR 29171
June 25, 1999	List of Regulated Substances and Thresholds for Accidental Release Prevention; Flammable Hydrocarbon Fuel Exemption; Proposed Rule; Extension of Comment Period [see 5/28/99 notice, comment Period extended until 7/28/99]	64 FR 34179