Be it enacted by the Senate and House of Representatives of the Philippines in Legislature assembled and by the authority of the same:

SECTION 1. Section two of Act Numbered Forty-one hundred and twenty-three is hereby amended to read as follows:

"SEC. 2. This Act shall apply to the following laborers and classes of laborers:

"(a) Stokers and laborers exposed to the heat of foundries, forges, and boilers or employed in rooms where ordinarily a high temperature is maintained;

"(b) Those exposed to the action of deleterious gases or working under conditions injurious to health;

"(c) Those using or handling explosives or harmful substances or employed in the production thereof;

"(d) Laborers employed in quarries, mines, or underground work;

"(e) Those who operate or work with machinery of such size, power or condition that it may cause death or serious injuries in case on an accident;

"(f) Those working with steel, iron, and other heavy metals in foundries and construction or repair shops;

"(g) Those employed in loading and discharging ships and in similar work in warehouses;

"(h) Divers, sewer workers or those exposed to dampness and wet conditions;

"(i) Those employed as electricians and linemen or working with electricity of high voltage in public utility enterprises;

"(j) Painters, window washers, roofers, construction workers of tall buildings and ships and other construction of sufficient height as to cause death or serious injuries in case of fall;

"(k) Drivers of automobiles, trucks, street cars and locomotive engines in public utility enterprises and air service pilots."

SEC. 2. This Act shall take effect on its approval.

Approved, August 26, 1935.