Which document serves as an official record of safety checks and compliance in mines?

The document that serves as an official record of safety checks and compliance in mines is the certificate of inspection. This certificate is crucial because it verifies that a thorough examination of the mining operations has been conducted, ensuring that safety standards are met and regulatory requirements are adhered to.

Certificates of inspection are often required by governing bodies to ensure that the mine operates safely and in compliance with workplace safety laws. They provide documented proof that safety measures are in place and that any potential hazards have been identified and addressed, which is vital for the protection of workers and the operation's legitimacy.

While the maintenance log and safety audit report can also contain important information about safety and compliance, they do not serve as the official record recognized by agencies or regulators. A training manual, although essential for providing information on safety protocols to employees, does not function as a record of compliance or checks performed on-site.