Regulations last checked for updates: Jan 14, 2026

Title 40 - Protection of Environment last revised: Dec 31, 2026
All TitlesTitle 40Chapter IPart 98Subpart XX - Subpart XX—Calcium Carbide Production
View all text of Subpart XX [§ 98.500 - § 98.508]
§ 98.500 - Definition of the source category.

The calcium carbide production source category consists of any facility that produces calcium carbide.

authority: 42 U.S.C. 7401-7671q.
source: 74 FR 56374, Oct. 30, 2009, unless otherwise noted.
cite as: 40 CFR 98.500
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