A. A minimum of at least 2 years with 4,000 hours of work in the field of plumbing installations as a licensed trainee plumber under the supervision of a master plumber, or the equivalent thereof, and obtaining a passing grade as determined by the board on the journeyman's examination; or

B. A minimum of 2,000 hours of work in the field of plumbing installations as a journeyman-in-training under the supervision of a licensed master plumber, as long as the work experience is obtained within 4 years of the date upon which the applicant was issued a journeyman-in-training license. A journeyman-in-training license must be issued upon sworn application to any person who has satisfactorily completed one academic year of instruction in plumbing at a board-approved technical college and who has obtained a passing grade, as determined by the board on the journeyman's examination.

2-A. Master plumber license. The board may issue a master plumber license to a person who submits an application on a form prescribed by the board with the required fee as set under section 3501-B and who provides satisfactory evidence of the following qualifications:

A. A minimum of at least one year with 2,000 hours of work in the field of plumbing installations as a journeyman plumber or a minimum of at least 4 years with 8,000 hours of work in the field of plumbing installations as a trainee plumber under the supervision of a master plumber, or the equivalent; and

B. Obtaining a passing grade, as determined by the board on the master's examination.

Sec. B-2. 32 MRSA §3501, sub-§2-B, as enacted by PL 1999, c. 386, Pt. L, §6, is amended to read:

2-B. Journeyman-in-training. The board may issue a journeyman-in-training license to a person who provides satisfactory evidence of completion of a plumbing course consisting of one year or 2 semesters at a board-approved technical college and who submits the required fee set under section 3501-B. A journeyman-in-training license is valid for a