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Regulations last checked for updates: Jul 08, 2025
Title 40 - Protection of Environment last revised: Nov 08, 2025
All Titles
Title 40
Chapter I
Part 415
Subpart M - Subpart M—Potassium Sulfate Production Subcategory
source:
47 FR 28278, June 29, 1982, unless otherwise noted.
cite as:
40 CFR 415.131
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