True or False: After testing a dry pipe valve, a tag with tester information must be attached.

The statement is true because it is essential to provide documentation and traceability for the maintenance and testing of fire protection systems, including dry pipe valves. According to industry standards and best practices, after conducting a test on a dry pipe valve, a tag must be attached. This tag typically contains crucial information such as the date of the test, the name of the technician who performed the inspection, and the results of the test.

This practice ensures that any subsequent inspections can reference the latest maintenance activities and confirms that the valve has been properly tested and is functioning as intended. It supports transparency and accountability in the inspection, testing, and maintenance (ITM) processes, which are vital to the effective operation of fire protection systems.