These requirements cover the fire safety aspects of industrial trucks with internal-combustion engines@ such as tractors@ platform-lift trucks@ fork-lift trucks@ and other specialized vehicles for industrial use. These requirements do not cover other possible safety aspects of such equipment. These requirements do not cover farm or road vehicles or automotive vehicles for highway use. Internal-combustion engine-powered industrial trucks covered by these requirements are identified as follows: Types G@ D@ LP@ and G/LP - Trucks fueled with gasoline (G)@ diesel fuel (D)@ liquefied petroleum gas (LP)@ or either gasoline or liquefied petroleum gas (G/LP)@ having fuel@ electrical@ and exhaust systems provided with minimum acceptable fire safeguards. Types GS@ DS@ LPS@ and GS/LPS - Trucks fueled with gasoline (GS)@ diesel fuel (DS)@ or liquefied petroleum gas (LPS)@ or either gasoline or liquefied petroleum gas (GS/LPS)@ provided with safeguards in addition to those required for Types G@ D@ LP@ and G/LP. Type DY - Trucks fueled with diesel fuel (DY)@ provided with all safeguards required for Type DS@ without any electrical equipment@ including ignition equipment@ and equipped with temperature limitation features. A product that contains features@ characteristics@ components@ materials@ or systems new or different from those covered by the requirements in this standard@ and that involves a risk of fire@ electric shock@ or injury to persons shall be evaluated using the appropriate additional component and end-product requirements as determined necessary to maintain the acceptable level of safety as originally anticipated by the intent of this standard. A product whose features@ characteristics@ components@ materials@ or systems conflict with specific requirements or provisions of this standard cannot be judged to comply with this standard. Where considered appropriate@ revision of requirements shall be proposed and adopted in conformance with the methods employed for development@ revision@ and implementation of this standard.