Section 12. A temporary absence from the commonwealth which exceeds 30 calendar days or 90 days in aggregate over the course of a calendar year shall create a rebuttable presumption that Massachusetts residency has been abandoned by a recipient of cash assistance under transitional aid to families with dependent children and that the recipient is no longer eligible for assistance. The department shall promulgate regulations in accordance with this section, including, but not limited to, the process by which the temporary absence shall be determined.