Regulations last checked for updates: Nov 22, 2024

Title 40 - Protection of Environment last revised: Nov 20, 2024
Appendix - Table 33 to Subpart G of Part 63—Saturation Factors
Cargo carrier Mode of operation S factor
Tank trucks and rail tank carsSubmerged loading of a clean cargo tank0.50
Submerged loading: dedicated normal service0.60
Submerged loading: dedicated vapor balance service1.00
Splash loading of a clean cargo tank1.45
Splash loading: dedicated normal service1.45
Splash loading: dedicated vapor balance service1.00
authority: 42 U.S.C. 7401
source: 57 FR 61992, Dec. 29, 1992, unless otherwise noted.