Asset condition will change over time as assets age and as they are used during normal operations. Therefore, the asset condition must be continuously updated to keep the data current. The time interval between updates may vary from utility to utility, but generally annually is a good time to revisit the condition assessment. In addition, as assets receive routine, preventative, or corrective maintenance, condition can be re-assessed and the resulting condition rating can be revised in the inventory.
Examples of the types of condition monitoring approaches that can be used to assess asset condition is presented in a table in Appendix A.