§393.67 Liquid fuel tanks.

Question 1: May a properly vented fuel cap be used on a fuel tank equipped with another fuel venting system?

Guidance: Yes (see §393.3).

Question 2: Do the Federal Motor Carrier Safety Regulations (FMCSRs) specify a particular pressure relief system?

Guidance: No, but the performance standards of §393.67(d) must be met.

Question 3: What standards under the Federal Motor Carrier Safety Regulations (FMCSRs) must be met when a liquid fuel tank is repaired or replaced?

Guidance: A replacement/repaired tank must meet the applicable standards in §393.67.