The bureau shall adopt regulations for the examining and licensing of fire sprinkler contractors, pipefitters, refrigeration technicians and sprinkler fitters, including the classification of pipefitter licenses, which shall include, but not be limited to, pipefitter welder, process piping and apprentice.
Mass. Gen. Laws ch. 146, § 82
Pipefitting examining and licensing rules; classification of pipefitter licenses
Official source: Massachusetts Legislature. Reproduced from public-domain Massachusetts statutes; confirm against the official source for the current text. Not legal advice.