Oklahoma: radiation safety rules for fluoroscopy teams

Yes. Oklahoma is an NRC Agreement State. DEQ runs the program, and the DEQ rule states the agreement relationship.

Fluoroscopy and diagnostic X-ray are covered by OAC Title 310, Chapter 281, "Diagnostic X-Ray Systems." Subchapter 9 is "Standards for Protection Against Radiation" and Subchapter 11 is "Use of X-Rays in the Healing Arts and Veterinary Medicine"; fluoroscopy controls are in 310:281-11-7. The latest amendment shown is 38 Ok Reg 1954, effective 9-11-2021. DEQ's OAC 252:410 Subchapter 20 adopts parts of 10 CFR 20 by reference for radioactive materials and non-diagnostic X-ray only.

Only partly. Chapter 281's single ALARA sentence covers exposures to unrestricted areas. No wording was found requiring occupational doses to be kept ALARA, and no radiation protection program requirement was found. The closest occupational provision, 11-7(b)(3), requires the fluoroscopic field to be reduced "to the absolute minimum required" when sterile fields rule out drapes or barriers.

Where ALARA lives in Oklahoma: In X-ray-specific rules. The fluoroscopy ALARA sentence is in OSDH's own Chapter 281, a separate rule from a separate agency. DEQ's 252:410-20-1 adopts 10 CFR 20.1101 but applies only to sources under DEQ jurisdiction, and 252:410-1-1(b) excludes OSDH diagnostic X-ray facilities. An NRC Part 20 compatibility change would flow most directly into the DEQ rule, not Chapter 281. Hospitals that also hold a DEQ radioactive-materials license are under both rules. (OAC 252:410-20-1(a), (c)(2); 252:410-1-1(b); OAC 310:281-9-1(b))

5 rem (50 mSv) per year total effective dose equivalent.

15 rem (150 mSv) per year. No lower lens limit, such as the International Commission on Radiological Protection (ICRP)'s 20 mSv, has been adopted.

50 rem (500 mSv) per year to the skin or any extremity.

0.5 rem (5 mSv) to the embryo/fetus of a declared pregnant woman over the whole pregnancy. The rule also adopts National Council on Radiation Protection and Measurements (NCRP) 91 guidance of no more than 0.05 rem (0.5 mSv) per month.

No percentage threshold by default. Dosimeters must be issued to everyone who enters a controlled or high radiation area and to everyone who uses or operates any source of radiation. OSDH may grant a written exemption if no one is likely to exceed 25% of the annual limits (5% for people under 18). For fluoroscopy where sterile fields prevent drapes or barriers, everyone in the room except the patient must have monitoring devices. Dental-only operators are exempt.

With an apron, the whole-body badge is worn at the unshielded location likely to get the highest dose, typically the collar. The lens badge goes at the collar or closer to the eye, outside the apron; the embryo/fetus badge at the waist under the apron; the extremity badge on the extremity likely to get the highest dose. Wear periods are no more than three months. Effective dose equivalent may be assigned by one of three methods: the collar badge deep dose equivalent; the collar badge × 0.3; or 1.5 × the waist badge under the apron + 0.04 × the collar badge outside it. The factors match NCRP 122, but the rule does not name it. 11-4(d)(1) requires the collar badge reading to be recorded as whole-body dose, which may conflict with 9-3(c).

In general radiography, staff must be protected from scatter by aprons or whole-body protective barriers of at least 0.25 mm lead equivalent; anyone whose body may be struck by the direct beam needs 0.5 mm lead-equivalent apron, gloves or shielding. In fluoroscopy, the setup must keep scatter to the body (except head, neck and extremities) behind at least 0.25 mm lead equivalent, with drapes, curtains or viewing shields counting in addition to any apron. Where sterile fields prevent drapes or barriers, everyone except the patient must wear 0.5 mm lead-equivalent aprons. Thyroid shields and protective eyewear are not addressed.

Yes, annually. Aprons, gloves and shields must be checked for defects and the check recorded; defective items must be replaced or removed from service until repaired. The inspection method is not specified.

Not addressed. Chapter 281 does not mention engineered radiation protection systems used in place of aprons. 11-6(c)(2) accepts "whole body protective barriers" as an alternative to aprons for scatter in general radiography. 11-7 treats drapes, curtains and shields as additions to any apron and requires 0.5 mm aprons when barriers can't be used. A 2025 PMC study lists Oklahoma among 15 states that specifically require lead aprons.

All use must be by or under the supervision of a person licensed under Oklahoma law to practice the relevant healing art. The rules do not list operator categories or define fluoroscopy supervision levels. Oklahoma does not license radiologic technologists (per secondary sources). Radiologist assistants, licensed by the Board of Medical Licensure and Supervision, may operate a fluoroscopic unit under general supervision of the supervising radiologist (rule dated Eff. 6-25-09, possibly out of date).

Operators need only be instructed in, and able to show competence with, the permittee's operating and safety procedures, and must be given written procedures. No state fluoroscopy permit, American Registry of Radiologic Technologists (ARRT) requirement, training hours, continuing education or physician fluoroscopy training requirement was found. CT has a specific-training requirement; fluoroscopy has none. Radiologist assistants must be ARRT-registered R.R.A.s who completed an ARRT-accredited program.