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Energy & environment · 15/06/1994Updated: 10/16/2026 · 1 min read

United States Environmental Protection Agency Proposes Full Approval of Wisconsin's 1990 Base Year Ozone Emission Inventory

Summary

The United States Environmental Protection Agency (USEPA) proposes full approval of Wisconsin's 1990 base year ozone emission inventory as a revision to the Wisconsin State Implementation Plan (SIP) for O 3.

Original source language: Federal Register — Environmental Protection AgencyOpen original release →

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