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Interpretation for 393.65:
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Print  
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Regulations current to Aug 30, 2012
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All Regulations
Part 393
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Subpart E - Fuel systems
§393.65 All fuel systems.
Question 1:
May a fuel fill pipe opening be placed above the passenger floor level if it is not physically within the passenger compartment?
Guidance: Yes. In addition, the fill pipe may intrude into the passenger compartment as long as the fill pipe opening complies with §393.65(b)(4), and the fill pipe is protected by a housing or covering to prevent leakage of fuel or fumes into the passenger compartment.
Question 2:
Must a motor vehicle that meets the definition of a ‘‘commercial motor vehicle’’ in §390.5 because it transports hazardous materials in a quantity requiring placarding under the Hazardous Materials Regulations (49 CFR parts 171-180) comply with the fuel system requirements of Subpart E of Part 393, even though it has a gross vehicle weight rating (Gross Vehicle Weight Rating (GVWR)) of 10,000 pounds or less?
Guidance: No. Federal Motor Vehicle Safety Standards (developed and issued by the NationalHighway Traffic Safety Administration) FMVSS No.301 contains fuel system integrity requirements for passenger cars and multipurpose passenger vehicles, trucks, and buses that have a Gross Vehicle Weight Rating (GVWR) of 10,000 pounds or less and use fuel with a boiling point above 0 deg. Celsius (32 deg. Fahrenheit). Subpart E of part 393 was issued to provide fuel system requirements to cover motor vehicles with a GVWR of 10,001 or more pounds. The fuel systems of placarded motor vehicles with a GVWR of less than 10,001 pounds are adequately addressed by FMVSS No. 301 and compliance with subpart E of part 393 would be redundant. However, commercial motor vehicles that are not covered by FMVSS No. 301 must continue to comply with subpart E of part 393.
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