U.S. Code of Federal Regulations

Regulations most recently checked for updates: Oct 01, 2023

All TitlesTitle 40Chapter IPart 421Subpart R - Subpart R—Secondary Mercury Subcategory
§ 421.200 - Applicability: Description of the secondary mercury subcategory.
§ 421.201 - Specialized definitions.
§§ 421.202–421.203 - §[Reserved]
§ 421.204 - Standards of performance for new sources.
§ 421.205 - [Reserved]
§ 421.206 - Pretreatment standards for new sources.
§ 421.207 - [Reserved]
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