The towns of Chilmark and Aquinnah will see a reduction in their property and casualty insurance costs following a driving safety course this week with members of the Tri-Town Ambulance Service, and the Chilmark and Aquinnah police and fire departments.

Massachusetts Interlocal Insurance Association, the towns’ property and casualty insurance provider, offers the training free. After the training, the towns are eligible to receive insurance premium credits through the MIIA.

Contained in a mobile trailer, the state-of-the-art, computer-driven simulator realistically replicates more than 150 driving conditions that operators of police cruisers, fire trucks, ambulances and other emergency vehicles may encounter, including snow, rain, fog and darkness. The course also includes one-on-one training on emergency procedures and safe driving techniques.