(1) Unless otherwise permitted by the board, a licensed journeyman plumber may perform work only in the employ of and under the supervision of a full-time licensed master plumber.

(2) The board recognizes that in certain instances to require journeyman to be in the employ of a master, may work a hardship and in certain instances the reason for requiring a master may not exist. These instances may include journeymen who are employed by a government entity and a majority of whose work which may be considered plumbing, is not involved in the initial installation, but rather only in making and doing certain minor kinds of maintenance to previously installed and existing plumbing.

(3) Therefore, it is the intent of this rule to require all licensed journeyman plumbers to work only in the employ of a licensed master plumber, unless such journeymen should feel that they are entitled to an exemption from this requirement. If this be the case, such journeyman must file with the board a written application for such exemption. That application must state by whom the journeyman is employed and it must state in detail the kind and amount of that work he is doing as such employee and especially those areas which may be involved in doing plumbing work.

(4) The board, upon review of the application, shall determine whether the type of employment and work thereunder shall require employment by a master and may thereafter in its discretion grant or deny the application.