OAR 333-120-0110
Radiation Dose Limits: Compliance with Requirements for Summation of External and Internal Doses

(1)

If the licensee is required to monitor under OAR 333-120-0210 (Surveys and Monitoring: Conditions Requiring Individual Monitoring of External and Internal Occupational Dose)(1) and (2), the licensee must demonstrate compliance with the dose limits by summing external and internal doses. If the licensee is required to monitor only under OAR 333-120-0210 (Surveys and Monitoring: Conditions Requiring Individual Monitoring of External and Internal Occupational Dose)(1) or only under 333-120-0210 (Surveys and Monitoring: Conditions Requiring Individual Monitoring of External and Internal Occupational Dose)(2), then summation is not required to demonstrate compliance with the dose limits. The licensee may demonstrate compliance with the requirements for summation of external and internal doses by meeting one of the conditions specified in section (2) of this rule and the conditions in sections (3) and (4) of this rule.
NOTE: The dose equivalents for the lens of the eye, the skin, and the extremities are not included in the summation, but are subject to separate limits.

(2)

Intake by Inhalation. If the only intake of radionuclides is by inhalation, the total effective dose equivalent limit is not exceeded if the sum of the deep-dose equivalent divided by the total effective dose equivalent limit, and one of the following, does not exceed unity:

(a)

The sum of the fractions of the inhalation ALI for each radionuclide; or

(b)

The total number of derived air concentration-hours (DAC-hours) for all radionuclides divided by 2,000; or

(c)

The sum of the calculated committed effective dose equivalents to all significantly irradiated organs or tissues (T) calculated from bioassay data using appropriate biological models and expressed as a fraction of the annual limit.
NOTE: An organ or tissue is deemed to be significantly irradiated if, for that organ or tissue, the product of the weighting factors, WT, and the committed dose equivalent, HT,50, per unit intake is greater than ten percent of the maximum weighted value of HT50 (i.e. WTHT50) per unit intake for any organ or tissue.

(3)

Intake by Oral Ingestion. If the occupationally exposed individual also receives an intake of radionuclides by oral ingestion greater than ten percent of the applicable oral ALI, the licensee must account for this intake and include it in demonstrating compliance with the limits.

(4)

Intake Through Wounds or Absorption Through Skin. The licensee must evaluate and, to the extent practical, account for intakes through wounds or skin absorption. The intake through intact skin has been included in the calculation of DAC for hydrogen-3 and does not need to be further evaluated.

Source: Rule 333-120-0110 — Radiation Dose Limits: Compliance with Requirements for Summation of External and Internal Doses, https://secure.­sos.­state.­or.­us/oard/view.­action?ruleNumber=333-120-0110.

333–120–0000
General Provisions: Purpose 333–120–0010
General Provisions: Scope 333–120–0015
General Provisions: Definitions 333–120–0017
General Provisions: Implementation 333–120–0020
General Provisions: Radiation Protection Programs 333–120–0100
Radiation Dose Limits: Occupational Dose Limits For Adults 333–120–0110
Radiation Dose Limits: Compliance with Requirements for Summation of External and Internal Doses 333–120–0120
Radiation Dose Limits: Determination of External Dose from Airborne Radioactive Material 333–120–0130
Radiation Dose Limits: Determination of Internal Exposure 333–120–0150
Radiation Dose Limits: Planned Special Exposures 333–120–0160
Radiation Dose Limits: Occupational Dose Limits for Minors 333–120–0170
Radiation Dose Limits: Dose to an Embryo/Fetus 333–120–0180
Radiation Dose Limits: Dose Limits for Individual Members of the Public 333–120–0190
Radiation Dose Limits: Compliance with Dose Limits for Individual Members of the Public 333–120–0200
Surveys and Monitoring: General 333–120–0210
Surveys and Monitoring: Conditions Requiring Individual Monitoring of External and Internal Occupational Dose 333–120–0215
Surveys and Monitoring: Location of Individual Monitoring Devices 333–120–0220
Control of Exposure from External Sources in Restricted Areas: Control of Access to High Radiation Areas 333–120–0230
Control of Exposure from External Sources in Restricted Areas: Control of Access to Very High Radiation Areas 333–120–0240
Control of Exposure from External Sources in Restricted Areas: Control of Access to Very High Radiation Areas — Irradiators 333–120–0250
Storage and Control of Licensed Material: Security of Stored Material 333–120–0260
Storage and Control of Licensed Material: Control of Material Not in Storage 333–120–0300
Respiratory Protection and Controls to Restrict Internal Exposure in Restricted Areas: Use of Process or Other Engineering Controls 333–120–0310
Respiratory Protection and Controls to Restrict Internal Exposure in Restricted Areas: Use of Other Controls 333–120–0320
Respiratory Protection and Controls to Restrict Internal Exposure in Restricted Areas: Use of Individual Respiratory Protection Equipment 333–120–0330
Respiratory Protection and Controls to Restrict Internal Exposure in Restricted Areas: Further Restrictions on the Use of Respiratory Protection Equipment 333–120–0340
Respiratory Protection and Controls to Restrict Internal Exposure in Restricted Areas: Application for Use of Higher Assigned Protection Factors 333–120–0400
Precautionary Procedures: Caution Signs 333–120–0410
Precautionary Procedures: Posting Requirements 333–120–0420
Precautionary Procedures: Exceptions to Posting Requirements 333–120–0430
Precautionary Procedures: Labeling Containers 333–120–0440
Precautionary Procedures: Exemptions to Labeling Requirements 333–120–0450
Precautionary Procedures: Procedures for Receiving and Opening Packages 333–120–0460
Precautionary Procedures: Testing for Leakage or Contamination of Sealed Sources 333–120–0500
Waste Disposal: General Requirements 333–120–0510
Waste Disposal: Method for Obtaining Approval of Proposed Disposal Procedures 333–120–0520
Waste Disposal: Disposal by Release into Sanitary Sewerage 333–120–0530
Waste Disposal: Treatment of Disposal by Incineration 333–120–0540
Waste Disposal: Disposal of Specific Wastes 333–120–0545
Disposal of Certain Byproduct Material 333–120–0550
Waste Disposal: Transfer for Disposal and Manifests 333–120–0560
Waste Disposal: Compliance with Environmental and Health Protection Regulations 333–120–0600
Records: General Provisions 333–120–0610
Records of Radiation Protection Programs 333–120–0620
Records of Surveys and Leak Tests 333–120–0630
Records: Determination of Prior Occupational Dose 333–120–0640
Records of Planned Special Exposures 333–120–0650
Records of Individual Monitoring Results 333–120–0660
Records of Dose to Individual Members of the Public 333–120–0670
Records of Waste Disposal 333–120–0680
Records of Testing Entry Control Devices for Very High Radiation Areas 333–120–0690
Form of Records 333–120–0700
Reports of Theft or Loss of Licensed Material 333–120–0710
Reports: Notification of Incidents 333–120–0720
Reports of Exposures, Radiation Levels, Leak Tests, and Concentrations of Radioactive Material Exceeding the Limits 333–120–0730
Reports of Planned Special Exposures and Individual Monitoring 333–120–0740
Reports to Individuals Exceeding Dose Limits
Last Updated

Jun. 8, 2021

Rule 333-120-0110’s source at or​.us