Quantities of Radioactive Materials Exempted

from Registration Requirements

Materials in Sealed Sources

Radioactive materials in sealed sources not exceeding 1 millicurie for a given installation.

Materials Not in Sealed Sources

1. Not more than 1 microcurie total quantity of any one or any combination of the following: Pb²¹⁰, Ra²²⁶, Ac²²⁷, Pu²³⁹, Am²⁴¹, Cm²⁴², Po²¹⁰, At²¹¹, U²³³

2. Not more than 10 microcuries total quantity of any one or any combination of the following: Sc⁴⁶, Co⁶⁰, Sr⁹⁰, Ag¹⁰⁵, Ru¹⁰⁶, Te¹²⁹, I¹³¹, Cs¹³⁷, Ce¹⁴⁴, Eu¹⁵⁴, W¹⁸¹, Re¹⁸³, Ir¹⁹²

3. Not more than 100 microcuries total quantity of any one or any combination of the following: P³², C1³⁶, Ca⁴⁵, Sc⁴⁷, Sc⁴⁸, V⁴⁸, Fe⁵⁹, Zn⁶⁵, Ga⁷², As76, Rb⁸⁶, Sr⁸⁹, Y⁹¹, Nb⁹⁵, Tc⁹⁶, Rh¹⁰⁵, Cd¹⁰⁹, Ag¹¹¹, Sn¹¹³, Te¹²⁷, Ba¹⁴⁰, La¹⁴⁰, Pr¹⁴³, Sm¹⁵¹, Ho¹⁶⁶, Tm¹⁷⁰, Lu¹⁷⁷, Ta¹⁸², Pt¹⁹¹, Pt¹⁹³, Au¹⁹⁸, Au¹⁹⁹, Tl²⁰⁰, Pb²⁰³, Tl²⁰⁴, Th²³⁴

4. Not more than 1,000 microcuries total quantity of any one or any combination of the following: H³, Be⁷, C¹⁴, Na²⁴, S³⁵, K⁴², Cr⁵¹, Fe⁵⁵, Mn⁵⁶, Ni⁵⁹, Gu⁶⁴, Ge⁷¹, Mo⁹⁹, Pd¹⁰³, Pm¹⁴⁷, Ir¹⁹⁰, Au¹⁹⁶, Tl²⁰¹, Tl²⁰²; natural uranium; natural thorium.

5. Not more than 10 microcuries of any one or of any combination of any radioactive materials not specified above.

(Effective October 1, 1982)