46 C.F.R. § 113.10-5 Common return.
Title 46 - Shipping
A conductor must not be used as a common return from more than one zone.
Title 46: Shipping
PART 113—COMMUNICATION AND ALARM SYSTEMS AND EQUIPMENT
Subpart 113.10—Fire and Smoke Detecting and Alarm Systems
§ 113.10-5 Common return.
