North American Product Classification System (NAPCS) Canada 2017 Version 1.0
- 511 - Transportation of commodities by pipeline
- 51111 - Transportation of natural gas by pipeline
- 511111 - Transportation of natural gas by pipeline
- 5111111 - Transportation of natural gas by pipeline
- 51112 - Transportation of crude oil and other commodities by pipeline
- 511121 - Transportation of crude oil by pipeline
- 5111211 - Transportation of crude oil by pipeline
- 511122 - Transportation of refined petroleum products by pipeline (including liquid petroleum gases)
- 5111221 - Transportation of refined petroleum products by pipeline (including liquid petroleum gases)
- 511123 - Transportation of other commodities by pipeline
- 5111231 - Transportation of other commodities by pipeline
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