Regulation & law · 12/11/2002Updated: 10/17/2026 · 1 min read

EPA Approves Pennsylvania's Air Quality Plan, Redesignating Pittsburgh CO Nonattainment Area

Summary

The Environmental Protection Agency (EPA) has proposed to approve Pennsylvania's State Implementation Plan (SIP) revision, which redesignates the Pittsburgh area's carbon monoxide nonattainment area to attainment, establishes a maintenance plan, and approves the 1990 base year inventory for CO in the area.

Original source language: Federal Register — All DocumentsOpen original release →

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