Construction and maintenance of natural gas cogeneration plants; construction of natural gas infrastructure, pipeline infrastructure, civil electrical underground infrastructure, underground utilities, trenches, and boreholes; construction of pipelines; extraction of natural gas; installation of pipelines; installation, repair and maintenance of residential and commercial natural gas pipeline systems; laying, repair, maintenance, replacement and refurbishment of gas pipelines; maintenance and repair of pipelines; natural gas extraction
Class 039
Class 039
Transportation & Storage Services
Distribution of renewable natural gas to residential and commercial users; public utility services in the form of natural gas distribution; transportation of renewable natural gas by rail, truck and pipeline
...
Class 040
Treatment & Processing of Materials Services
Natural gas liquefaction services; natural gas treatment and processing; production of energy from renewable natural gas
Construction and maintenance of natural gas cogeneration plants; construction of natural gas infrastructure, pipeline infrastructure, civil electrical underground infrastructure, underground utilities, trenches, and boreholes; construction of pipelines; extraction of natural gas; installation of pipelines; installation, repair and maintenance of residential and commercial natural gas pipeline systems; laying, repair, maintenance, replacement and refurbishment of gas pipelines; maintenance and repair of pipelines; natural gas extraction
039
Class 039
Transportation & Storage Services
Distribution of renewable natural gas to residential and commercial users; public utility services in the form of natural gas distribution; transportation of renewable natural gas by rail, truck and pipeline
...
Class 040
Treatment & Processing of Materials Services
Natural gas liquefaction services; natural gas treatment and processing; production of energy from renewable natural gas
