National Occupational Classification for Statistics (NOC-S) 2006
- H - Trades, Transport and Equipment Operators and Related Occupations
- H1 - Construction Trades
- H11 - Plumbers, Pipefitters and Gas Fitters
- H111 - Plumbers
- H112 - Steamfitters, Pipefitters and Sprinkler System Installers
- H113 - Gas Fitters
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