(19) “rental agreement” means all agreements, written or oral, and valid rules and regulations adopted under AS 34.03.130 embodying the terms and conditions concerning the use and occupancy of a dwelling unit and premises;
(20) “sanitary facility” means a flush toilet and proper drainage for all toilets, sinks, basins, bathtubs, and showers;
(21) “single family residence” means a structure maintained and used as a single dwelling unit;
(22) “tenant” means a person entitled under a rental agreement to occupy a dwelling unit to the exclusion of others;
(23) “undeveloped rural area” means an area where public sewer or water services are not available.