U.S. Code of Federal Regulations
Regulations most recently checked for updates: Aug 28, 2025
A venting system must have no assembly that could reduce its cross-sectional flow area or flow capacity to less than that required in § 153.358.
Regulations most recently checked for updates: Aug 28, 2025
A venting system must have no assembly that could reduce its cross-sectional flow area or flow capacity to less than that required in § 153.358.