Pm Compliance
What is the world-class PM compliance target?
>95% is world-class; 85–95% is good; <70% indicates reactive maintenance dominance.
Does PM compliance measure work quality?
No; it measures whether the task was done on schedule, not how well it was performed.
How does PM compliance relate to MTBF and emergency work rate?
High compliance should correlate with increased MTBF and <10% emergency work rate; if not, PM strategy or data integrity is flawed.
What is the acceptable tolerance for 'on time'?
Commonly ±3 days for monthly tasks or ±10% of the interval; organization-specific windows must be defined in CMMS.
PM Compliance is the percentage of scheduled preventive maintenance tasks completed on time within a defined window (e.g., ±3 days of the due date or ±10% of the interval), calculated as (PMs Completed On Time / PMs Scheduled) × 100. It measures schedule adherence and execution reliability, not work quality or failure outcomes.
In shop floor maintenance, PM Compliance is tracked via CMMS systems like ServiceGrid, where each work order has a scheduled date, completion date, and priority code; the system auto-calculates compliance based on whether the task was closed within the compliance window. It serves as a leading KPI to assess if the maintenance plan is executed as intended, with high compliance (>90–95%) indicating a mature, proactive program, while <70% signals firefighting and reactive dominance. Typically monitored monthly or over a rolling 30-day period, it helps track trends in MTBF and unplanned downtime.
Ignoring the compliance window: Counting tasks completed late as 'on time,' inflating the metric and masking execution gaps.
High compliance but high reactive work: Indicates ineffective PM tasks (e.g., wrong frequency, poor procedures) or inaccurate data reporting, failing to prevent failures.
Focusing only on completion rate, not timing: Completing PMs but outside the window (e.g., months late) reduces asset reliability and increases breakdown risk.