# 10 CFR § 73.6: Exemptions for certain quantities and kinds of special nuclear material

> Federal · Regulations · In force

URL: https://www.frixlaw.com/law-library/statutes/ecfr-10-73.6

## Section

- **Citation:** 10 CFR § 73.6
- **Heading:** Exemptions for certain quantities and kinds of special nuclear material
- **Jurisdiction:** Federal
- **Kind:** Regulations
- **Status:** In force
- **Text as of:** September 22, 2026
- **Source:** Publisher's official text
- **Location:** Title 10—Energy > CHAPTER I—NUCLEAR REGULATORY COMMISSION > PART 73—PHYSICAL PROTECTION OF PLANTS AND MATERIALS > Subpart A—General Provisions

## Text

A licensee is exempt from the requirements of 10 CFR part 26 and §§ 73.20, 73.25, 73.26, 73.27, 73.45, 73.46, 73.70 and 73.72 with respect to the following special nuclear material:
(a) Uranium-235 contained in uranium enriched to less than 20 percent in the U-235 isotope.
(b) Special nuclear material which is not readily separable from other radioactive material and which has a total external radiation level in excess of 1 gray (100 rad) per hour at a distance of 1 meter (3.3 feet) from any accessible surface without intervening shielding.
(c) Special nuclear material in a quantity not exceeding 350 grams of uranium-235, uranium-233, plutonium, or a combination thereof, possessed in any analytical, research, quality control, metallurgical or electronic laboratory.
(d) Special nuclear material that is being transported by the United States Department of Energy transport system.
(e) Special nuclear material at non-power reactors.
Licensees subject to § 73.60 are not exempted from §§ 73.70 and 73.72, and licensees subject to § 73.67(e) are not exempted from § 73.72 of this part.
[40 FR 52841, Nov. 13, 1975, as amended at 44 FR 68187, Nov. 28, 1979; 58 FR 31471, June 3, 1993; 78 FR 34250, June 7, 2013; 86 FR 43402, Aug. 9, 2021]

## Nearby sections

- [10 CFR § 73.1 § 73.1 Purpose and scope.](https://www.frixlaw.com/law-library/statutes/ecfr-10-73.1.md)
- [10 CFR § 73.2 § 73.2 Definitions.](https://www.frixlaw.com/law-library/statutes/ecfr-10-73.2.md)
- [10 CFR § 73.3 § 73.3 Interpretations.](https://www.frixlaw.com/law-library/statutes/ecfr-10-73.3.md)
- [10 CFR § 73.4 § 73.4 Communications.](https://www.frixlaw.com/law-library/statutes/ecfr-10-73.4.md)
- [10 CFR § 73.5 § 73.5 Specific exemptions.](https://www.frixlaw.com/law-library/statutes/ecfr-10-73.5.md)
- [10 CFR § 73.6 § 73.6 Exemptions for certain quantities and kinds of special nuclear material.](https://www.frixlaw.com/law-library/statutes/ecfr-10-73.6.md)
- [10 CFR § 73.8 § 73.8 Information collection requirements: OMB approval.](https://www.frixlaw.com/law-library/statutes/ecfr-10-73.8.md)
- [10 CFR § 73.15 § 73.15 Authorization for use of enhanced weapons and preemption of firearms laws.](https://www.frixlaw.com/law-library/statutes/ecfr-10-73.15.md)
- [10 CFR § 73.17 § 73.17 Firearms background checks for armed security personnel.](https://www.frixlaw.com/law-library/statutes/ecfr-10-73.17.md)
- [10 CFR § 73.20 § 73.20 General performance objective and requirements.](https://www.frixlaw.com/law-library/statutes/ecfr-10-73.20.md)
- [10 CFR § 73.21 § 73.21 Protection of Safeguards Information: Performance requirements.](https://www.frixlaw.com/law-library/statutes/ecfr-10-73.21.md)
- [10 CFR § 73.22 § 73.22 Protection of Safeguards Information: Specific requirements.](https://www.frixlaw.com/law-library/statutes/ecfr-10-73.22.md)
- [10 CFR § 73.23 § 73.23 Protection of Safeguards Information—Modified Handling: Specific requirements.](https://www.frixlaw.com/law-library/statutes/ecfr-10-73.23.md)
- [10 CFR § 73.24 § 73.24 Prohibitions.](https://www.frixlaw.com/law-library/statutes/ecfr-10-73.24.md)

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Source: Frix Law Library, https://www.frixlaw.com/law-library/statutes/ecfr-10-73.6. Check the current official text before relying on it. Not legal advice.