Which three items should service tags show to verify readiness after WCFS service?

• A. Current date on service tags and a successful functional test only.
• B. Proper alarm signaling only.
• C. Current date, a successful functional test, and proper alarm signaling.
• D. Technician initials only.

Answer: (C)

When a WCFS (Wet Chemical Fire Suppression) system is serviced, the tag should document three things to show the system is ready for use. First, the current date so you have a clear maintenance record and know when the next service is due. Second, evidence that a functional test was completed successfully, confirming the system operates as designed and will discharge properly if needed. Third, verification that alarm signaling is working correctly, ensuring that activation triggers the appropriate audible/visual alerts and notifies the fire alarm or monitoring systems.

Including all three items ensures the system has been both mechanically checked and properly integrated with the building’s alarm notifications. A tag that only shows a date or only shows a test result, or only confirms initials, wouldn’t prove the system will function and alert occupants reliably.