US lawMontanaRegulationsTitle 17 — ENVIRONMENTAL QUALITYChapter 17.70 — RADIATION CONTROL (TRANSFERRED)Subchapter 17.70.6 — (TRANSFERRED)17.70.617ARM 17.70.617ARM 17.70.617. THERAPEUTIC X-RAY INSTALLATIONSTransferredLength: 4 wordsOfficial source Cite as Mont. Admin. R. 17.70.61717.70.617 THERAPEUTIC X-RAY INSTALLATIONSPreviousARM 17.70.616