AhaBulb: Stuff Everyone Should Know · ahabulb.com/cdl-handheld-phone-prohibited
When may a CMV driver use a hand-held mobile telephone while driving?
- For short calls under two minutes
- Only to reach police or emergency services
- On rural roads only
🔒 The answer is for AhaBulb members. Members see the answer, why it's right and the official sources for every card of Stuff Every CDL Driver Should Know, plus timed practice exams.
The first 50 cards of every test are free to play.
Like this card?
References
- 49 CFR 392.82 (eCFR) www.ecfr.gov/current/title-49/section-392.82 Checked 2026-10-10.
Think this answer is wrong? Tap "Challenge this answer" on the card in the game and tell us why.
More stuff everyone should know
That's stuff everyone should know.