Section 10
SEC. 10. The provisions of this section shall be applicable to heavy motor vehicles and trailers when upon the public highway: (a) The approved registered weights and the allowable rate of speed shall be conspicuously marked upon the sides of the vehicles. (b) The total weight of a laden vehicle shall in no case exceed eight metric tons (17,920 pounds) unless permission in writing, from the Director of Public Works, or his authorized representative, has been obtained. (c) No metal tire of a vehicle, shall be provided with dogs, flanges, grooves, corrugations, ribs, strips, or present other than a smooth surface. (d) Vehicles traveling over the highways shall have the proportion between width of tire and weight of vehicle loaded as determined in the following paragraph. (e) The width of tire of any wheel of a vehicle shall be determined from the following empirical formula: T=K/D,T being the number expressing the width of the tire in centimeters, K the number expressing the pressure of the wheel upon the highway surface in kilograms, and D the number expressing the diameter of the wheel in centimeters. (f) No vehicle of a weight, including its load, of three and one-half metric tons (7,840 pounds) but less than five metric tons (11,200 pounds), shall be operated upon any highway or bridge at a speed greater than twenty kilometers per hour if the tires are of rubber, or at a speed greater than twelve kilometers per hour if the tires are of metal; and no vehicle of a weight, including its load, greater than five metric tons (11,200 pounds) but less than eight metric tons (17,920 pounds) shall be operated upon any highway or bridge at a speed greater than fifteen kilometers per hour if the tires are of rubber, or at a speed greater than ten kilometers per hour if the tires are made of metal. (g) The width of tire of each wheel shall be governed by the provisions of paragraph (e) of this Act. (h) The owners of the vehicles shall be liable for any and all damages to the highways, bridges and culverts, which damages may be recovered by the government of the province wherein the damage occurred, or by the Insular Government, in a court of competent jurisdiction. (i) The terms "heavy motor vehicle" and "trailers" used in this section are those vehicles carrying passengers, or carrying or hauling freight or merchandise or agricultural produce and having a weight when loaded greater than one and one-half metric tons (3,360 pounds). (j) Infractions of any of the provisions of this section shall be punished by a fine of the owner of the vehicle, or trailer, of ten pesos for the first offense and for a second offense by a revocation of the registration of the vehicle and a fine of the owner of the vehicle of two hundred pesos or by imprisonment for a term not to exceed fifty days or both fine and imprisonment.