20.2. In the cases provided for by regulation of the Government, the contractor must send to the board of examiners before beginning work, the plans and specifications of a new piping system or of alterations to an existing piping system.
These plans and specifications must contain the information required by regulation of the Government.
The board of examiners may, in the case of an alteration to an existing piping system, grant a delay of 30 days, from the beginning of the work, for the sending of the plans and specifications.