40 CFR ECFRP94928bfd32ebac3 — Table 3 to Subpart III of Part 63—Compliance Requirements for Slabstock Foam Production Affected Sources
Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
| 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]