30 Miss. Code. R. 2901-9.3
Every optometrist in active practice in this State shall designate in writing on his license application or renewal form one fixed location as his main office and shall identify any branch office locations then existing. A branch office is defined as any fixed location where the optometrist may practice other than his main office. Any change in office location or new opening of any office (main or branch) shall be reported in writing to the board, including change in ownership, the starting of a practice in the same physical location where any other optometrist is already in practice. The provisions of this Rule shall apply without regard to the optometrist's ownership interest, or lack thereof, in the office facility or the practice located where any licensed optometrist may practice under his license granted by this board.
30 Miss. Code. R. 2901-9.3