Environmental Protection Agency Docket EPA-R08-OAR-2017-0634 Proposed Rule

2018-00114: Approval and Promulgation of Air Quality Implementation Plans; State of Montana; Revisions to East Helena Lead SIP

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Summary

The Environmental Protection Agency (EPA) is proposing to approve State Implementation Plan (SIP) revisions submitted by the state of Montana on September 11, 2013. The submittal revises the portions of the Administrative Rules of Montana (ARM) that pertain to the East Helena Lead SIP. This action is being taken under section 110 of the Clean Air Act (CAA) (Act).

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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