The document titled “Marking-Table-for-PD-6662-NCP-120-Preventative-Maintenance” outlines the marking criteria for inspecting Intruder and Hold-Up Alarm Systems (I&HAS) in accordance with PD 6662:2017 and related standards. It provides a structured marking table divided into five sections, detailing specific maintenance requirements, testing protocols, and visual inspections, with points assigned for deviations from established standards. The document serves as a guideline for NSI inspectors to evaluate compliance and determine the need for re-inspection based on the grading system.