• May 22, 2015 - EPA issued a final action to ensure states have plans in place that are fully consistent with the Clean Air Act and recent court decisions concerning startup, shutdown and malfunction (SSM) operations.
  • Final Rule: State Implementation Plans: Response to Petition for Rulemaking; Restatement and Update of EPA’s SSM Policy Applicable to SIPs; Findings of Substantial Inadequacy; and SIP Calls to Amend Provisions Applying to Excess Emissions During Periods of Startup, Shutdown and Malfunction (PDF)(147 pp, 928 K, About PDF)
  • Fact Sheet on the Final Rule
  • List of Affected States (PDF)(147 pp, 928 K, About PDF)

Background Information:

• June 2011:  Sierra Club's Petition
• February 4, 2013:  Legal Background Memorandum
• February 22, 2013:  Federal Register Proposed Rule (PDF)(82 pp, 675 K, About PDF)
  • Fact Sheet on the Proposed Rule
• September 5, 2014
  • Supplemental Proposal (PDF)(38 pp, 464 K, About PDF)
  • Fact Sheet on the Supplemental Proposal