U.S. Code of Federal Regulations

Regulations most recently checked for updates: Jan 21, 2026

All TitlesTitle 40Chapter IPart 63Subpart YYYYY - Subpart YYYYY—National Emission Standards for Hazardous Air Pollutants for Area Sources: Electric Arc Furnace Steelmaking Facilities

APPLICABILITY AND COMPLIANCE DATES
§ 63.10680 - Am I subject to this subpart?
§ 63.10681 - What are my compliance dates?

STANDARDS AND COMPLIANCE REQUIREMENTS
§ 63.10685 - What are the requirements for the control of contaminants from scrap?
§ 63.10686 - What are the requirements for electric arc furnaces and argon-oxygen decarburization vessels?

OTHER INFORMATION AND REQUIREMENTS
§ 63.10690 - What parts of the General Provisions apply to this subpart?
§ 63.10691 - Who implements and enforces this subpart?
§ 63.10692 - What definitions apply to this subpart?
Appendix - Table 1 to Subpart YYYYY of Part 63—Applicability of General Provisions to Subpart YYYYY
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