If there is a transport truck that used natural gas (NGV) fuel is the carrier must comply with the terms of the PTT about safety standards for this type of truck. When I get on the gas separation plant or a factory LPG gas as follows:
If the transport trucks that use natural gas (NGV) as fuel, the carrier must comply with the PTT on security standards for truck types. When applied to the GSP. Or as the LPG filling plant