US lawMinnesotaRegulationsDEPARTMENT OF HEALTHChapter 4675 — CHAPTER 4675, OUTPATIENT SURGICAL CENTERS4675.1900Minn. R. 4675.1900DUCTSYear: 2026Length: 19 wordsOfficial source Ducts which penetrate construction intended for X-ray or other ray protection shall not impair the effectiveness of the protection.PreviousMinn. R. 4675.1800NextMinn. R. 4675.2000