Code of Massachusetts Regulations
220 CMR - DEPARTMENT OF PUBLIC UTILITIES
Title 220 CMR 109.00 - Design, Construction, Operation and Maintenance of Intrastate Pipelines Operating In Excess of 200 PSIG
Section 109.10 - Welding and Welding Inspection

(1) All welding procedures shall be qualified in accordance with API Std. 1104 (as referenced in 49 CFR Part 192).

(2) Each welder shall be qualified in accordance with API Std. 1104 (as referenced in 49 CFR Part 192) no more than six months before performing welding on a pipeline.

(3) All butt welds on a pipeline six inches or greater in diameter shall be nondestructively tested by radiographic inspection in accordance with API Std. 1104 (as referenced in 49 CFR Part 192), except for girth welds that are determined impracticable to test by radiographic inspection, provided that 90% of all girth welds, on pipelines six inches or greater in diameter, are nondestructively tested by radiographic inspection.

(4) All pipeline tie-in welds shall be nondestructively tested.

(5) All other welds shall be tested in a manner that is determined by the operator to reasonably indicate defects that may affect the integrity of the weld. Such testing shall be by means of radiographic inspection, other industry approved means of nondestructive testing, or visual inspection. Visual inspections of welds shall be performed and approved by a qualified welding inspector.

(6) All welds that are found unacceptable under 220 CMR 109.10 shall be removed or repaired in accordance with 49 CFR 192.245.

(7) A record of each nondestructive weld test or visual inspection, including radiographs pertaining thereto, shall be retained for the life of the pipeline. The disposition of rejected welds shall be part of the record.