The guidance in this Manual should assist medical practitioners, the maritime industry, individual mariners, and Coast Guard personnel in evaluating a mariner applicant’s physical and medical status to meet the requirements of the merchant mariner medical certificate. This Manual incorporates and consolidates prior guidance on the medical evaluation of merchant mariners contained in several Coast Guard documents. The Manual includes guidance on the medical certificate and related processes, including procedures for application, issuance, and cancellation of the medical certificate.
Source: USCG
Link: Merchant Mariner Medical Manual now available