Are smoke detectors required to be on dedicated circuit?

Smoke detectors are generally not required to be on a dedicated circuit, but this can vary by local building codes and regulations. In residential settings, it's common for smoke detectors to be connected to general lighting or power circuits. However, for critical safety systems, some jurisdictions may recommend or require them to be on a separate circuit to ensure they remain operational during power outages or when other circuits are overloaded. Always check local codes for specific requirements.