CBRN defense specialists' primary responsibility is to ensure their unit is trained and ready to survive and operate in a CBRN environment. CBRN defense specialist assists, conduct, and supervise training in CBRN defense monitor, survey and reconnaissance, chemical detection and identification, biological agent collection and sampling, decontamination of personnel, equipment and casualties, and in individual protective measures and firs aid for unit personnel.

A JCBRNRS LAV operator provides both the unique driving skills to operate the LAV system platform and the technical expertise in operating the multiple detection systems, computer, and communication equipment associated with the JCBRNRS. In addition to providing a mobile detection capability, the JCBRNRS operator is capable of performing designated operator maintenance on all equipment associated with the JNBCRS.