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326.461 DEFINITIONS.
    Subdivision 1. Scope. For the purpose of sections 326.46 to 326.521, the following terms
have the meanings given them.
    Subd. 1a. Board. "Board" means the Board of High Pressure Piping Systems.
    Subd. 1b. Contracting high pressure pipefitter. "Contracting high pressure pipefitter"
means an individual, such as a steamfitter, engaged in the planning, superintending, and practical
installation of high pressure piping and appurtenances, and otherwise lawfully qualified to
construct high pressure piping installations and make replacements to existing plants, who is also
qualified to conduct the business of high pressure piping installations and who is familiar with the
laws, rules, and minimum standards governing them.
    Subd. 2. High pressure piping. "High pressure piping" means all high pressure piping used
in the installation of hot water or steam heating boilers, any systems of piping hot water or other
medium used for heating that exceed 30 p.s.i. gauge and 250 degrees Fahrenheit, or any system
of high pressure steam, ammonia piping, or bioprocess piping, but shall not include any high
pressure piping under the direct jurisdiction of the United States.
    Subd. 2a. High pressure steam. "High pressure steam" means a pressure in excess of 15
pounds per square inch.
    Subd. 2b. Journeyman high pressure pipefitter. "Journeyman high pressure pipefitter"
means an individual, such as a steamfitter, who is not a contracting high pressure pipefitter and
who is engaged in the practical installation of high pressure piping and appurtenances in the
employ of a contracting high pressure pipefitter.
    Subd. 3. Municipality. "Municipality" means a statutory or home rule charter city.
    Subd. 4. Pipefitter apprentice. A "pipefitter apprentice" is an individual employed in the
trade of the practical construction and installation of high pressure piping and appurtenances under
an apprenticeship agreement approved by the department under Minnesota Rules, part 5200.0300.
History: 1984 c 481 s 2; 1987 c 132 s 1; 1989 c 22 s 1; 1994 c 465 art 1 s 42; 2006 c 241 s
4; 2007 c 140 art 10 s 2-6