Each contractor shall determine that compressed gas cylinders under
his extent that this can be determined by visual inspection. Visual and
other inspections shall be conducted as prescribed in the Hazardous
Materials Regulations of the Department of Transportation (49 CFR Parts
171-179 and 14 CFR Part 103). Where those regulations are not
applicable, visual and other inspections shall be conducted in
accordance with Compressed Gas Association Pamphlets C-6-198 and C-8-
1962.