Iowa Admin. Code r. 641-40.54Download PDFCurrent through Register Vol. 47, No.14, January 8, 2025Rule 641-40.54 - Security and control of licensed radioactive material in quantities of concernIowa Admin. Code r. 641-40.54Amended by IAB June 11, 2014/Volume XXXVI, Number 25, effective 7/16/2014.