Environmental Protection Agency Docket EPA-HQ-OAR-2018-0753 Proposed Rule

2019-09119: National Emission Standards for Hazardous Air Pollutants: Engine Test Cells/Stands Residual Risk and Technology Review

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Summary

The Environmental Protection Agency (EPA) is proposing the results of the residual risk and technology reviews (RTR) for the National Emission Standards for Hazardous Air Pollutants (NESHAP) for Engine Test Cells/Stands. We found risks due to emissions of air toxics from this source category to be acceptable and determined that the current NESHAP provides an ample margin of safety to protect public health. We identified no new cost-effective controls under the technology review to achieve further emission reductions. We are proposing no revisions to the numerical emission limit based on the risk analysis and technology review. We are proposing to amend provisions addressing periods of startup, shutdown, and malfunction (SSM), to amend provisions regarding electronic reporting and to make clarifying and technical corrections.

The agency’s own summary, as published.

What this changes

Amends 1 part of the Code of Federal Regulations — the standing rules this notice rewrites.

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