The Jefferson County Office of Emergency Management will host an All-Hazards Full-Scale Exercise from 9 a.m. to 1 p.m. Wednesday.

The Jefferson County Office of Emergency Management will host an All-Hazards Full-Scale Exercise from 9 a.m. to 1 p.m. Wednesday.

The exercise will focus primarily on preparing local emergency crews to effectively respond to all-hazards incidents.

The event will begin with a test exercise near Port Road.