Variant of NOC 2011 - Analysis by skill level
- b - NOC skill level B: occupations usually require college education or apprenticeship training
- 22 - Technical occupations related to natural and applied sciences
- 227 - Transportation officers and controllers
- 2271 - Air pilots, flight engineers and flying instructors
- 2272 - Air traffic controllers and related occupations
- 2273 - Deck officers, water transport
- 2274 - Engineer officers, water transport
- 2275 - Railway traffic controllers and marine traffic regulators
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