37-67-328. Certificate of authorization. (1) A business entity registered with the Montana secretary of state:

(a) shall obtain a certificate of authorization from the board before engaging in the practice of professional engineering or professional land surveying; and

(b) may engage in the practice of professional engineering or professional land surveying in this state if at least one employee of the business entity is licensed by the board and identified as being in responsible charge of professional engineering or professional land surveying work performed in this state.

(2) A business entity with one or more branch offices or business locations in Montana shall apply for a certificate of authorization for the main office and list each branch office or business location and at least one employee of the business entity who is licensed by the board and identified as being in responsible charge of professional engineering or professional land surveying work performed in this state.

(3) A sole proprietor who is not required to register with the Montana secretary of state is not required to apply for a certificate of authorization.