CSA Revises Canadian Code for Installation of NGV Refuelling Stations (B108)

| Canada | Source: CSA Group

CSA Group logoCSA Group, a leader in natural gas vehicle deployment, has published a new edition of the Canadian B108 Code to support the safe installation of natural gas vehicle refuelling stations. This fourth edition, known as CSA B108-18, includes revisions to the Code’s existing compressed natural gas (CNG) coverage, as well as a new section (Part 2) dedicated to the design, location, construction, operation, operator training and maintenance of liquefied natural gas (LNG) refuelling stations.

B108 is the Code in Canada, required by many provinces, to install natural gas refuelling stations for vehicles, and is aimed at suppliers, installers and owner operators involved in supplying natural gas refuelling stations. First released in 1995, and revised again in 1999 and 2014, B108 is designed to support the country’s alternative fuel deployment initiatives, along with its objectives to reduce greenhouse gas emissions associated with transportation. The 2018 revision addresses difficulties with interpretation of the Code, as well as advances in the evolving technology.

For example, Part 1 of the Code, which applies to all compressed natural gas refuelling stations, including those that are intended for fleet or public dispensing operations, has been reorganized for consistency with the newly-added Part 2, and includes revisions to the scope, definitions and various requirements, particularly as they relate to the distinction between residential fuelling appliances and listed non-residential vehicle fuelling appliances. It also includes clarified requirements for hose length and ground contact prevention, emergency shutdown button location, refuelling area ventilation requirements and more.

Part 2 addresses advancements in the sector, and is applicable to liquefied natural gas refuelling stations, including mobile refuelling units, shop-fabricated and assembled refuelling stations, and LNG to CNG conversion systems. It supersedes Annex D of CSA Z276 – LNG Vehicle Fuelling Stations.

The revised code is an important milestone for the Natural Gas for Transportation (NGT) industry, explains Ry Smith, Chair of the CSA B108 Technical Subcommittee.

“This new edition addresses a number of design and interpretation issues that have arisen over the past several years, and the addition of Part 2, covering LNG vehicle refuelling, is a logical and exciting development that will help to harmonize best practices, as well as end-user experience.”

Smith adds that CSA B108 will continue to evolve as more CNG stations are built, and as the Code is used by new designers, within new jurisdictions.

“As technology advances, the Code will need to be adjusted so as not to implicitly exclude advanced materials, designs and methods.”

CSA Group will continue to stay on top of the latest developments in the industry, and provide solutions aimed at maintaining Canada’s natural gas vehicle infrastructure, safety, and reliability. In addition to B108-18, the organization recently published 18 new standards to support the safe deployment of liquefied natural gas vehicles, including standards covering LNG vehicle fuel system components, as well as vehicle dispensing systems.

CSA B108-18 can be purchased from the CSA Store. Contact Julie Cairns, Senior Project Manager, Alternative Energy, at [email protected] with any questions about the revised Code.


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