Appendix A
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
Pb210, Ra226, Ac227, Pu239, Am241, Cm242, Po210, At211, U233
Sc46, Co60, Sr90, Ag105, Ru106, Te129, I131, Cs137, Ce144, Eu154, W181, Re183, Ir192
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
H3, Be7, C14, Na24, S35, K42, Cr51, Fe55, Mn56, Ni59, Gu64, Ge71, Mo99, Pd103, Pm147, Ir190, Au196, Tl201, Tl202; natural uranium; natural thorium.
Conn. Agencies Regs. § 19-24-14