Federal Motor Vehicle Safety Standards; Fuel System Integrity of Compressed Natural Gas Vehicles; Compressed Natural Gas Fuel Container Integrity

摘要

This notice proposes to amend Standard No. 303, Fuel System Integrity of Compressed Natural Gas Vehicles, and Standard No. 304, Compressed Natural Gas Fuel Containers. With respect to Standard No. 303, the notice proposes additional labeling requirements for compressed natural gas (CNG) vehicles. With respect to Standard No. 304, the notice proposes to specify additional performance requirements that would ensure a CNG fuel container's integrity. The proposes tests include environmental cycling tests, an impact test, a gunfire test, a flaw tolerance test, a pendulum impact test, and a drop test. Along with the vehicle labeling requirements, the notice proposes additional labeling requirements for CNG containers. These tests and performance requirements, which are based on the Natural Gas Vehicle Coalition's voluntary standard, NGV2, are intended to ensure the structural integrity of CNG containers.