The department shall permit shared staffing between residential care facilities and other levels of assisted housing on the same premises as long as there is a clear, documented audit trail and the staffing in the residential care facilities remains adequate to meet the needs of residents. Staffing to be shared may be based on the average number of hours used per week or month within the assisted housing program. For the purposes of this section, "shared staffing" means the use of licensed and unlicensed personnel who are employed, directly or under a contract, by a long-term care facility in more than one level of care provided by a single entity on the same premises.   [PL 2001, c. 596, Pt. A, §1 (NEW); PL 2001, c. 596, Pt. B, §25 (AFF).]