Code of Practice for Use of Gaseous Fuels in Internal Combustion Engine Vehicles.

Safety, Procedural Requirements, Type Approval of Gaseous Fuelled Agricultural Tractors.

Code of Practice for Use of Gaseous Fuels in Internal Combustion Engine Agricultural Tractors.

Requirements of Hydrogen Powered Construction Equipment Vehicles.

Central Motor Vehicles Rules 1989 (Extracts).

Requirements of Hydrogen Powered L Category Vehicles.

Safety/Procedural Requirements/Type Approval of Gaseous Fuelled Vehicles.

Use of Gaseous Fuels in Internal Combustion Engine CEV's.

Safety of Vehicles Using Anhydrous Ethanol and Higher Blended Gasoline (EBMG)

Sensing Devices for On-road Emissions - Specifications and Programming Guidelines.