Advanced Photon Source

An Office of Science National User Facility

Experiment Hazard Class 7.4 – BSL-4 Biohazards


This hazard classification applies to all experiments involving biohazards requiring Biosafety Level 4 (BSL-4). Other hazard classifications and their associated hazard controls may also apply to experiments in this hazard class.

Biosafety Level 4 work is STRICTLY FORBIDDEN at the APS and Argonne National Laboratory.

Reviewed: March 17, 2017