US lawMinnesotaRegulationsDEPARTMENT OF HEALTHChapter 4660 — CHAPTER 4660, BOARDING CARE HOMES; PHYSICAL PLANT4660.8330Minn. R. 4660.8330HEIGHT OF REGISTERS, NEW CONSTRUCTIONYear: 2026Length: 17 wordsOfficial source Registers for air supply or return shall be located not less than four inches above the floor.PreviousMinn. R. 4660.8320NextMinn. R. 4660.8340