MAINTENANCE OPERATIONSLEDGER

The operating record for assets, work, and reliability.

Coverage desk

Standards Desk

Source-backed reporting and analysis connected to the companies, capabilities, authorities, and operating domains it affects.

ISO 55000 sets the vocabulary—not the system requirements

ISO 55000:2024 provides the asset-management overview, principles, and terms. ISO 55001 carries the management-system requirements, so buyers should not treat a 55000 reference as certification evidence or a substitute for operating records.

IEC 60300-3-14 makes supportability a lifecycle decision

IEC 60300-3-14:2024 connects supportability and support to reliability, maintainability, availability, performance, cost, and risk across an item's life. Maintenance software should expose those tradeoffs rather than reduce support to a spare-parts list.

NRC’s maintenance rule makes intended function—not work volume—the control

For covered nuclear-plant structures, systems, and components, 10 CFR 50.65 centers monitoring on performance or condition against licensee-established goals. Effective preventive maintenance can change the monitoring path, but completed work orders alone do not establish that intended function is being maintained.