(a) 3 years for manifests, purge;
(b)3 years after the material is accepted by the initial carrier for hazardous waste, purge;
(c) 2 years after the material is accepted by the initial carrier for all other hazardous material, purge.
Exception: In the event of a subpoena, audit, legal hold, public records or similar state or federal information request, halt until further instructed any scheduled disposal activities, including purging or transferring material to University Archives.