Code of Federal Regulations > Title 40 > Chapter I > Part 63 > Subpart III > Appendix - Table 3 to Subpart III of Part 63—Compliance Requirements for Slabstock Foam Production Affected Sources

Regulations last checked for updates: Jan 30, 2025

Title 40 - Protection of Environment last revised: Nov 08, 2025

Appendix - Table 3 to Subpart III of Part 63—Compliance Requirements for Slabstock Foam Production Affected Sources

Emission point	Emission point compliance option	Emission, work practice, and equipment standards	Monitoring	Recordkeeping	Reporting
Diisocyanate storage vessels § 63.1294(a)	Vapor balance	§ 63.1294(a)(1) and (1)(ii)	§ 63.1294(a)(1)(i)	§ 63.1307(a)(1) and (4)	§ 63.1306(e)(5).
	Carbon adsorber	§ 63.1294(a)(2)	§ 63.1303(a)(1), (3), and (4)	§ 63.1307(a)(1), (3)(i), and (3)(iii)	§ 63.1306(e)(3).
	Carbon adsorber—alternative monitoring	§ 63.1294(a)(2)	§ 63.1303(a)(2), (3) and (4)	§ 63.1307(a)(1), (3)(ii), and (3)(iii)	§ 63.1306(e)(3).
Diisocyanate transfer pumps § 63.1294(b)	Sealless pump	§ 63.1294(b)(1)		§ 63.1307 (b)(1)(i) and (2)
	Submerged pump	§ 63.1294(b)(2)(i) and (iii)	§ 63.1294 (b)(2)(ii)	§ 63.1307 (b)(1)(i), (2), and (3)	§ 63.1306(e)(4).
Other components in diisocyanate service § 63.1294(c)	N/A	§ 63.1294(c)	§ 63.1294(c)	§ 63.1307 (b)(1)(i) and (3)	§ 63.1306(e)(4).
ABAs § 63.1297	N/A	§ 63.1297		§ 63.1307(e)
Equipment Cleaning § 63.1298	N/A	§ 63.1298		§ 63.1307(e)

[63 FR 53996, Oct. 7, 1998, as amended at 79 FR 48090, Aug. 15, 2014]

authority: 42 U.S.C. 7401

source: 57 FR 61992, Dec. 29, 1992, unless otherwise noted.