Final answer:
Dolly converters built on or after March 1, 1998 are required to have anti-lock brakes.
Step-by-step explanation:
Dolly converters built on or after March 1, 1998 are required to have anti-lock brakes.
Anti-lock brakes are a safety feature that prevent the wheels from locking up during braking, allowing the driver to maintain steering control.
These brakes work by regularly and rapidly releasing and reapplying the brakes, preventing the wheels from skidding.