105 C.M.R. 153.030
(A) A long-term care facility shall not use any part of the licensed premises for tenant occupancy or for other business. Unlicensed space within the long-term care facility premises may be used for tenant occupancy or other business if the following requirements are met:
(5) The presence of an area used for tenant occupancy or other business cannot impede the licensed long-term care facility's ability to comply with the provisions of 105 CMR 150.000: Licensing of Long-term Care Facilities and any applicable federal requirements, including:
(6) Prior to any unlicensed part of the premises being used for tenant occupancy or other business, the long-term care facility must ensure the proposal is the product of sound community engagement and consultation regarding the proposed tenant occupancy or other business with the following groups:
(B) A facility may not provide any services to persons other than residents, except as provided in 105 CMR 153.030(B).
(2) Notwithstanding any restrictions in 105 CMR 150.012(H), a facility may provide special activities and services described therein to persons other than residents provided that:
Department under 105 CMR 153.031 allowing the facility to use unlicensed space on the premises for tenant occupancy, other business, or to provide certain services to persons other than residents may continue to rely on such waiver even if such use or service does not meet the requirements in 105 CMR 153.030(A) or (B); provided, however, any such waiver remains subject to the terms or conditions included in the waiver and such a waiver may be revoked due to non-compliance with its terms or conditions or the provisions of 105 CMR 150.000: Licensing of Long-term Care Facilities or 105 CMR 153.000.