(a) Factory Test Pressure. The pressure at which the shell was tested at time of manufacture. This pressure is shown on the nameplate.

(b) FFFP. Film Forming Fluoroprotein Foam.

(c) F.M. Factory Mutual.

(d) Fire Department. For the purposes of these regulations, a department of state, county, districts, or municipal government, a separate tax-supported unit of government organized under special provisions of law or a privately organized unit located within an industrial facility providing fire protection service to the community or facility to prevent fires from starting, prevent loss of life and property when fire starts, confine fire to the place where it starts, and to extinguish fires.