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Fact Sheet: Supplemental Proposal: State Plans to Address Emissions during Startup, Shutdown and Malfunction (SSM)

On September 5, 2014, the U.S. Environmental Protection Agency (EPA) proposed a rule supplementing and revising its February 2013 proposal to ensure states have plans in place that require industrial facilities across the country to follow air pollution rules during times when the facility is starting up or shutting down, or when a malfunction occurs.

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