(a) Each inboard barge “dummy” header used during outboard barge loading must—
- (1) Be aligned with the vapor header of the outboard barge;
- (2) Have a diameter at least as large as the diameter of the largest pipe in the vapor collection system of the outboard barge;
- (3) Be marked in accordance with 46 CFR 39.2001(h); and
- (4) Meet the same design and installation requirements for the vapor collection piping onboard the same barge.
- (b) Flanges must meet the same design and installation requirements for flanges in the vapor collection system onboard the same barge.
- (c) A stud must be permanently attached, as required in 46 CFR 39.2001(j), to the vapor connection flange on the “dummy” header.