1. Pennsylvania requires owners of registered commercial vehicles to:

Maintain and be able to show proof of required financial responsibility

Owners must maintain required financial responsibility (auto liability) and provide proof of coverage as the law requires.

2. An interstate trucker subject to federal motor carrier rules must carry an endorsement guaranteeing public liability known as the:

MCS-90 endorsement

The MCS-90 endorsement guarantees payment of certain public liability judgments for interstate motor carriers.

3. The Business Auto Coverage Form provides a business with:

Liability and physical damage coverage for its autos

The Business Auto Coverage Form (BACF) provides auto liability and physical damage coverage for a business's vehicles.

4. In the business auto form, covered auto symbol 1 designates:

Any auto, the broadest designation for liability

Symbol 1 (any auto) is the broadest covered-auto designation and is commonly used for liability coverage.