(a) Each helicopter fueling facility must be marked adjacent to the fueling hose storage: “WARNING—HELICOPTER FUELING STATION—KEEP LIGHTS AND FIRE AWAY”.

(b) Each storage tank for helicopter fuel must be marked: “DANGER—FLAMMABLE LIQUID”.

(c) Each access to a helicopter landing area must be marked: “BEWARE OF TAIL ROTOR”.

(d) Each marking required by this section must be in letters at least 7.5 centimeters (3 inches) high.