Proposal to address issues associated with periodic testing and periodic requalification of CNG cylinders.

Proposal to enable the approval of conformable container tanks (new container shapes and configurations) in vehicles equipped with CNG propulsion systems.

Proposal to introduce changes and additions to the Change of Design Table to better specify appropriate test requirements for CNG cylinders with composite materials and, in some cases, to harmonize with ISO 11439.

Proposal to enable the approval of conformable container tanks (new container shapes and configurations) in vehicles equipped with CNG propulsion systems.