The Petroleum Equipment Institute is currently seeking comment on a new recommended practices document entitled Recommended Practices for the Design, Installation, Operation and Maintenance of Compressed Natural Gas (CNG) Vehicle Fueling Facilities (PEI/RP1500).

All architects, engineers, system operators, regulators, contractors, consultants, end users, system installers, utilities, code officials and manufacturers of compressed natural gas fueling systems are invited to comment. The public comment period closes Wednesday, September 10.

The document should be useful to fleet operators and business owners who are considering using CNG for vehicle fueling and want to learn both how these facilities work, and what design and performance factors need to be considered before investing in such a facility. Code enforcement personnel who are charged with permitting and inspecting CNG fueling facilities may also find this document useful in reaching a better understanding of code requirements.

The recommended practices apply to outdoor CNG facilities that receive pipeline quality natural gas from a utility or non-utility distribution system, remove moisture from the gas, compress the gas, store limited quantities of compressed gas, and dispense the CNG into vehicle fuel tanks.

The scope of this document includes: time fill and fast fill fueling methods; commercial fleet fueling facilities; retail fueling facilities; fueling appliances intended to fuel a small fleet of vehicles.

To download a read-only draft of the document and to comment, visit