Cal. Code Regs. Tit. 17, § 30336 - Requirements for Shielded-Room Radiography

(a) A user conducting shielded-room radiography shall designate an individual as the radiation safety officer. This individual shall meet the criteria specified in section 30336.7.

(b) A user shall not allow any individual to perform shielded-room radiography unless the individual:

(1) Has completed the training specified in section 30335.10 from a provider approved pursuant to section 30331;

(2) Has received copies of, instruction in, and demonstrated understanding of, the user's operating and emergency procedures by obtaining a passing grade of at least 80 percent on a written examination covering this material. The written examination shall be at least 50 questions in length. Instruction in this material shall be at least eight hours long; and

(3) Has demonstrated competence to use the radiation machines and survey instruments employed by the user and in the kinds of radiographic operations that will be performed by obtaining a passing grade of at least 80 percent on a practical examination covering this material. The practical examination shall be at least 25 questions in length. Instruction in this material shall be at least four hours long.

(c) A user shall supply personnel dosimeters to and require the use by every individual who operates, who makes "setups," or who performs maintenance on a shielded-room radiography unit. Each personnel dosimeter shall be assigned to and worn by only one individual and processed in accordance with section 30333.2(b). Reports received from the dosimetry processor shall be available for inspection and maintained until the Department terminates the user's registration. If a personnel dosimeter is lost or damaged during radiographic operations, the worker shall immediately cease work using radiation sources until a replacement personnel dosimeter is provided and the exposure is calculated for the time period from issuance to loss or damage of the personnel dosimeter. The radiation safety officer shall perform the calculation. The results with measurements, calculated data, and assumptions made to obtain the calculated exposure and the time period for which the personnel dosimeter was lost or damaged shall be retained for inspection until the Department terminates the user's registration.

(d) All openings through which an individual could gain access to the room shall be interlocked so that the radiation machine will not operate unless all openings are securely closed. The required controls shall be designed such that an individual is not prevented from leaving the room.

(e) The room shall not be occupied during radiation exposures.

(f) A device shall be installed within the room that will, upon actuation, terminate production of radiation. It shall not be possible to reset, override, or bypass the device from outside the room.

(g) Radiation machines used in shielded-room radiography shall meet the requirements specified in American National Standard N537-1976 "Radiological Safety Standard for the Design of Radiographic and Fluoroscopic Industrial X-ray Equipment" published as NBS Handbook 123, issued August 1977 [FN*], which is incorporated by reference.

(h) The interior of the room shall be shielded so that every location on the exterior does not exceed the dose limits for an unrestricted area as specified in 10 CFR 20, subpart D incorporated by reference in section 30253.

(i) Documentation demonstrating compliance with this section shall be maintained for three years and kept available for inspection.

[FN*]

*Copies of American National Standard N537-1976 "Radiological Safety Standard for the Design of Radiographic and Fluoroscopic Industrial X-ray Equipment" (published as NBS Handbook 123, issued August 1977) may be purchased from the American National Standards Institute, Inc., 25 West 43rd Street, New York, New York 10036 or from IHS Standards Store at "http://global.ihs.com." Insert "NBS HDBK 123" for the document number in the Standards Search box.

Notes

Cal. Code Regs. Tit. 17, § 30336

1. Amendment of subsection (c)(4) filed 5-13-69; effective thirtieth day thereafter (Register 69, No. 20).
2. Amendment of subsection (c)(5) filed 10-12-72; effective thirtieth day thereafter (Register 72, No. 42).
3. Change without regulatory effect adding NOTE (Register 87, No. 11).
4. Amendment of subsections (a), (b) and (c)(5) filed 3-3-94 as an emergency; operative 3-3-94 (Register 94, No. 9). A Certificate of Compliance must be transmitted to OAL by 7-1-94 or emergency language will be repealed by operation of law on the following day.
5. Certificate of Compliance as to 3-3-94 order transmitted to OAL 6-7-94 and filed 7-14-94 (Register 94, No. 28).
6. Repealer and new section heading, section and NOTE and filed 4-11-2008; operative 5-11-2008 (Register 2008, No. 15).
7. Amendment of footnote and NOTE filed 12-30-2014; operative 4-1-2015 (Register 2015, No. 1).
8. Amendment of subsection (c) filed 3-30-2022; operative 7-1-2022 (Register 2022, No. 13).

Note: Authority cited: Sections 114975, 115000 and 131200, Health and Safety Code. Reference: Sections 114965, 114970, 115060, 131050, 131051 and 131052, Health and Safety Code.

1. Amendment of subsection (c)(4) filed 5-13-69; effective thirtieth day thereafter (Register 69, No. 20).
2. Amendment of subsection (c)(5) filed 10-12-72; effective thirtieth day thereafter (Register 72, No. 42).
3. Change without regulatory effect adding Note (Register 87, No. 11).
4. Amendment of subsections (a), (b) and (c)(5) filed 3-3-94 as an emergency; operative 3-3-94 (Register 94, No. 9). A Certificate of Compliance must be transmitted to OAL by 7-1-94 or emergency language will be repealed by operation of law on the following day.
5. Certificate of Compliance as to 3-3-94 order transmitted to OAL 6-7-94 and filed 7-14-94 (Register 94, No. 28).
6. Repealer and new section heading, section and Note and filed 4-11-2008; operative 5-11-2008 (Register 2008, No. 15).
7. Amendment of footnote and Note filed 12-30-2014; operative 4-1-2015 (Register 2015, No. 1).
8. Amendment of subsection (c) filed 3-30-2022; operative 7/1/2022 (Register 2022, No. 13).