A 34-hour restart is never mandatory and is optional.

Answer: A — True

In hours-of-service rules, a 34-hour restart is optional. You’re not required to take it; it’s a voluntary reset you may use if you need to reset your weekly driving limits. If you do choose to use a restart, it must be at least 34 consecutive hours off duty and must include two periods between 1:00 a.m. and 5:00 a.m.