Due to its extremely long half life (301,000 yrs), use of Chlorine-36 is generally discouraged. However, if no suitable alternatives are available the following guidelines must be followed:
Handle and store millicurie or greater amounts behind plexiglass shields of approximately 0.5 cm thickness.
A survey meter should be used to monitor work surfaces after each use. Records of dry wipe smear surveys should also be maintained for inspection.
Cl-36 liquid waste must be segregated from all other liquid radioactive wastes.