South Dakota Administrative Rules
Title 44 - Department of Health
Article 44:03 - Radiation safety
Chapter 44:03:01 - Radiation control
Section 44:03:01:08.06 - Equipment standards for dental X ray equipment

(1) All dental X ray machines must meet the specifications in 21 C.F.R. § 1020.30, in effect on March 31, 2000, and 21 C.F.R. 1020.31, in effect on July 2, 1999;

(2) Any deviation of a measured technique factor from an indicated value for kVp may not exceed any limit specified for that system by its manufacturer or, in the absence of any manufacturer's specifications, the deviation may not exceed ten percent of the indicated value for kVp;

(3) The exposure switch shall be located so the operator can stand at least six feet from the useful beam. If sufficient shielding is provided to protect the operator from stray radiation, the exposure switch may be located closer;

(4) Any dental X ray equipment must operate with a kilovoltage of sixty kVp or higher;

(5) Any dental X ray machine must be maintained within manufacturer's specifications and recommendations;

(6) Any hand-held intraoral X ray equipment shall be equipped with a backscatter shield of not less than 0.25 millimeter lead equivalent and 15.2 centimeters in diameter that is positioned as close as practicable to the distal end of the position indication device;

(7) When operating a hand-held intraoral dental radiographic unit, operators shall wear a 0.25 millimeter lead equivalent apron, unless otherwise authorized by the department or a qualified physicist; and

(8) Any hand-held device must be secured from unauthorized removal or use.