1. Scope 1.1 This Standard applies to the construction and performance of new propane
fuel system components that provide motive power to highway vehicles with
internal combustion engines. 1.2 This Standard does not apply to stationary or non-highway applications. 1.3 This Standard does not apply to propane fuel system components
incorporated during the manufacture of motor vehicles originally produced in
compliance with federal Motor Vehicle Safety Regulations (Fuel System Integrity
Requirements). 1.4 This Standard contains SI (metric) equivalents to the yard/pound units so
that the Standard may be used in SI (metric) units. If a value for a
measurement in this Standard is followed by an equivalent value in other units,
the first value stated is to be regarded as the requirement. The equivalent
value may be approximate.