U.S. Code of Federal Regulations

Regulations most recently checked for updates: Aug 27, 2025

All TitlesTitle 40Chapter IPart 63Subpart W - Subpart W—National Emission Standards for Hazardous Air Pollutants for Epoxy Resins Production and Non-Nylon Polyamides Production
§ 63.520 - Applicability and designation of sources.
§ 63.521 - Compliance schedule.
§ 63.522 - Definitions.
§ 63.523 - Standards for basic liquid resins manufacturers.
§ 63.524 - Standards for wet strength resins manufacturers.
§ 63.525 - Compliance and performance testing.
§ 63.526 - Monitoring requirements.
§ 63.527 - Recordkeeping requirements.
§ 63.528 - Reporting requirements.
§ 63.529 - Implementation and enforcement.
Appendix - Table 1 to Subpart W of Part 63—General Provisions Applicability to Subpart W
Appendix - Table 2 to Subpart W of Part 63—Toxic Equivalency Factors
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