Section 1. Be it enacted, &c., That it shall be unlawful for any person or persons to have charge of or to operate a steam- boiler or steam-engine over ten-horsepower, in cities of the second and third class of this Commonwealth, except locomotive boilers, used in transportation, and steam-engines and steam- boilers, carrying less than fifteen pounds pressure per square inch, unless said person or persons are upwards of eighteen years of age, and holds a license, as hereinafter provided for; and it shall be unlawful for any owner or owners, user or users, of any steam-boiler or steam-engine over ten-horsepower, other than those excepted above, to operate or cause to be operated a steam-boiler or steam-engine without a duly licensed engineer.
(1 amended Jun. 16, 1972, P.L.465, No.147)