What is required for the certification of mine maps?

The correct choice highlights that a certification from a licensed engineer is necessary for mine maps. This requirement is rooted in the need for accuracy and compliance with safety and regulatory standards within the mining industry. A licensed engineer possesses the expertise and qualifications to ensure that mine maps are not only accurate but also reflect the latest geological data and mining operations.

This certification process helps to maintain safety standards, as incorrect or unverified maps can lead to hazardous situations in the mine, including accidents, miscalculations in mining operations, and potential legal implications for the mining company. Therefore, having an official certification from a licensed professional adds credibility and reliability to the mine maps, which serve as essential tools for operational planning and navigation within mining sites.

The other options do not provide the same level of reliability and validation. An inspection by any mining employee or a visual validation by miners may not ensure the technical accuracy necessary for mine maps, as these individuals may lack the required training or qualifications to certify such complex documents. Similarly, an employee stamp of approval lacks the formal recognition and accountability provided by a licensed engineer, making it insufficient for compliance with industry standards.