(a) hazard exposure records: 30 years after employee separation, purge; 
(b) audiometric test records: until employee separation, purge; 
(c) work-related injuries and illnesses: 6 years after closed, purge; 
(d) vaccination attestations, proof of vaccination records or exemption forms: 3 years after submitted, purge; 
(e) all other employee medical records: 3 years after employee separation, purge.