As part of disaster planning and response, a representative of the county welfare director, in coordination with the lead local agency designated with sheltering support duties under the State Emergency Plan Emergency Support Functions, shall initiate a memorandum of understanding with an area agency on aging (AAA), an independent living center (ILC), or an Aging and Disability Resource Connection (ADRC) program to allow access by the AAA, the ILC, or the ADRC program to an emergency shelter established for evacuation purposes during an active event, in order to ensure that older adults and persons with disabilities receive continuous services and necessary support.