Code of Federal Regulations Title 46. Shipping § 46.52.01–100 Openings and compensation (modifies PG–32 through PG–39, PG–42 through PG–55)

(a) The rules for openings and compensation shall be as indicated in PG–32 through PG–55 of section I of the ASME Boiler and Pressure Vessel Code (incorporated by reference;  see 46 CFR 52.01–1) except as noted otherwise in this section.

(b) (Modifies PG–39.) Pipe and nozzle necks shall be attached to vessel walls as indicated in PG–39 of section I of the ASME Boiler and Pressure Vessel Code except that threaded connections shall not be used under any of the following conditions:

(c) (Modifies PG–42.) Butt welding flanges and fittings must be used when full radiography is required by § 56.95–10.