In addition to NFPA 52 §6.9.3, the refueling connection on an engine fuel system shall be firmly supported, and shall:
  (1) receive the fueling connector and accommodate the service pressure of the vehicle fuel system;
  (2) incorporate a means to prevent the entry of dust, water, and other foreign material. If the means used is capable of sealing system pressure, it shall be capable of being depressurized before removal; and
  (3) have a fueling connection appropriate for the pressure of the vehicle fuel system.

Source Note: The provisions of this §13.34 adopted to be effective November 15, 1990, 15 TexReg 5936; amended to be effective June 1, 1994, 19 TexReg 3168; amended to be effective February 15, 2021, 46 TexReg 1035