Exterior bell/siren time-out durations vary by jurisdiction; common range is?

• A. They are standardized nationwide to 15 minutes
• B. They vary by jurisdiction
• C. They must always run exactly 3 minutes
• D. They are capped at 10 minutes

Answer: (B)

Exterior bell or siren time-out durations are governed by local rules, not a single nationwide standard. Different jurisdictions set their own limits or requirements through their alarm codes or nuisance alarm ordinances, so the allowed sound duration can vary from city to city or county to county. That’s why the correct takeaway is that these durations vary by jurisdiction—the local authority determines what’s permitted, what’s required, and what penalties may apply.

Because of that, statements about a nationwide standard, a fixed exact duration, or a universal cap aren’t accurate. Some places may allow longer sounds, others shorter, and some may impose caps or minimums based on their specific codes. The key idea to remember is to always check the local jurisdiction’s alarm code for the precise time-out rules.