DHS 157.86(3)(c)2.2. Supply the department with other information as the department requests. DHS 157.86(3)(c)3.3. Not operate within the state on a temporary basis in excess of 30 calendar days per year without obtaining a Wisconsin registration. DHS 157.86 HistoryHistory: CR 01-108: cr. Register July 2002 No. 559, eff. 8-1-02; CR 06-021: am. (1) (a) 1. to 5. Register October 2006 No. 610, eff. 11-1-06; correction in (1) (a) 2. made under s. 35.17, Stats., Register January 2018 No. 745. DHS 157.87DHS 157.87 Radiation safety requirements. DHS 157.87(1)(1) General requirements. Unless otherwise provided in this chapter, this subchapter applies to all radiation generating devices. Certified and certifiable cabinet x-ray systems shall also meet the requirements of 21 CFR 1020.40. DHS 157.87(1)(a)1.1. Warning devices shall be labeled so that their purpose is easily identified. DHS 157.87(1)(a)2.2. An easily visible warning device light labeled with the words “X-RAY ON,” or words having a similar meaning and intent, shall be located near any switch that energizes an x-ray tube and shall be illuminated only when the tube is energized. This warning light shall be of a fail-safe design. DHS 157.87(1)(b)1.1. All radiation generating devices equipment shall be labeled near any switch that energizes an x-ray tube with either: DHS 157.87(1)(b)1.b.b. A readily visible and discernible sign or signs bearing “CAUTION RADIATION - THIS EQUIPMENT PRODUCES RADIATION WHEN ENERGIZED,” or words having a similar meaning and intent. DHS 157.87(1)(b)2.2. For radiation generating devices with designed openings for object entries, such as baggage security screening units, the following shall be posted at or near each opening: “CAUTION – X-RAY HAZARD: DO NOT INSERT ANY PART OF THE BODY WHEN SYSTEM IS ENERGIZED”, or words having similar meaning and intent. DHS 157.87(1)(c)(c) Radiation source housing. Each x-ray tube housing shall comply with all of the following requirements: DHS 157.87(1)(c)1.1. ‘Interlock.’ When the x-ray tube housing is the primary shielding for the x-ray tube, and is intended to be opened for normal use or maintenance, the housing shall be equipped with an interlock that shuts off the high voltage to the x-ray tube if the housing is opened. DHS 157.87(1)(c)2.2. ‘Radiation emission limit.’ Each x-ray tube housing shall be so constructed that, with all shutters closed, the leakage radiation measured at a distance of 5 centimeters from the x-ray tube housing surface does not exceed 0.025 mSv (2.5 mrem) per hour. This limit shall be met at the maximum tube rating. For closed-beam systems, this requirement may be met by complying with the radiation emission limit provided in sub. (2) (d). For a radiation generating device in a shielded room, this limit may be met by measuring from any accessible surface outside the room housing the radiation generating device. For hand-held, open-beam radiation generating devices, this requirement may be met by complying with the limits in sub. (4) (c) radiation emission limit. DHS 157.87(1)(d)(d) Generator cabinet or high voltage source radiation emission limits. Each x-ray generator or high-voltage source shall be supplied with a protective cabinet which limits leakage radiation to 2.5 microSv (0.25 mrem) per hour at a distance of 5 centimeters measured at the nearest accessible surface. For closed-beam systems, this requirement may be met by complying with radiation emission limits in sub. (2) (d). For a radiation generating device in a shielded room with the high-voltage generator also inside the shielded room, this limit may be met by measuring from any accessible surface outside the room housing the radiation generating device. For hand-held, open-beam radiation generating devices, this requirement may be met by complying with the radiation emission limits in sub. (4) (c). DHS 157.87(1)(e)1.1. Radiation surveys of all radiation generating devices shall be sufficient to show compliance with radiation emission requirements of this subchapter and as required by ss. DHS 157.22 and 157.25. The radiation surveys shall be sufficient to evaluate the magnitude and extent of radiation emissions and the potential radiological hazards that could be present. At a minimum, surveys shall be performed: DHS 157.87(1)(e)1.a.a. Upon installation of the equipment, and at least once every 12 months thereafter. DHS 157.87(1)(e)1.b.b. Following any change in the initial arrangement, number, or type of local components in the system. DHS 157.87(1)(e)1.c.c. Following any maintenance requiring the disassembly, removal, or repair of a local component in the system. DHS 157.87(1)(e)1.d.d. During the performance of maintenance, calibration, and other procedures if the procedures require the presence of a primary x-ray beam while any local component in the system is disassembled or removed. DHS 157.87(1)(e)1.f.f. Any time a visual inspection of the local components in the system reveals an abnormal condition. DHS 157.87(1)(e)1.g.g. Whenever a personnel monitoring device shows a significant increase over previous monitoring period or readings are approaching the limits specified in s. DHS 157.22.