53 Pa. Stat. § 15325
Those desiring to become journeymen plumbers shall apply to the Department of Health, and be given an examination by the Board of Plumbing Supervision of the Department of Health, for the privilege of which examination, they shall pay five dollars ($5.00). The names of those persons found competent, shall be certified to the director of health of said cities, who shall thereupon issue a certificate of registration to the applicant. Registered journeymen plumbers, who have been registered for four years, shall be entitled to take the examination and qualify for a license as a master plumber. The journeyman plumber shall register each year in the month of January with the Department of Health, and receive a certificate of registration at the cost of fifty cents (50c).
Those applying for a license as a master plumber shall pay, for the privilege of examination, the sum of twenty-five dollars ($25.00), and those, who shall fail to pass an examination, shall be permitted to retake the examination after the lapse of three months, for which he shall pay five dollars ($5.00). Should the applicant again fail, he may retake the examination at intervals of one year at the cost of twenty-five dollars ($25.00).
If the applicant for registration as a journeyman plumber fails, he may retake the examination, after three months, at the cost of one dollar ($1.00), and if he fails again, he may retake the examination, at intervals of three months, at the cost of five dollars ($5.00). All fees for examinations and registration, as herein provided for, shall be paid into the city treasury.
A register or roll of all master plumbers and journeymen and apprentices, who shall secure their certification each year, shall be kept in the said department, which register or roll shall be open to the inspection of all persons interested therein.
53 P.S. § 15325