(1) Premises on which advanced seminars are to be offered shall be sufficiently large to accommodate not more than one participant per 20 square feet of area.(2) The premises on which advanced seminars are offered shall have accessible lavatories in accordance with applicable laws and regulations.(3) At a minimum, any premises on which advanced seminars are offered by an entity constituted for the purposes of offering such seminars shall have equipment adequate to support the seminar offered and seating accommodations for all participants.(4) No premises at which advanced seminars are offered may be used as a shop, and no premises used as a shop may be used to offer advanced seminars.(5) The premises on which advanced seminars are offered shall be available for inspection by any member of the Board or its investigators during business hours.Amended by Mass Register Issue 1392, eff. 5/31/2019.