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First published in 1991 by the Canadian Standards Association (now CSA Group), the standard formally known as CAN CSA M6405-91 — Mining – Maintenance of Mobile Mining Equipment — remains a cornerstone of operational reliability and safety risk management in the Canadian extractive sector. As a National Standard of Canada, it establishes a comprehensive, auditable framework for managing the entire lifecycle of mobile machinery deployed in both surface and underground mining environments. This article provides a detailed technical overview of its scope, core requirements, and the implications for maintenance and compliance programs.

Scope of CAN CSA M6405-91

CAN