A 61-year-old worker with about 41 years’ coal mining experience has been diagnosed with coal workers’ pneumoconiosis.

We have published an investigation into how the worker may have contracted the disease. Following the investigation, it is reasonable to conclude that the worker’s condition is related to his work as a coal miner. However, it cannot reasonably be determined, based on a review of the evidence obtained, whether the worker contracted the disease as a consequence of exposure while working at a particular mine.