An MMC (Marine Medical Certificate) is a certificate issued to seafarers after they pass a medical examination to determine their fitness to work onboard a vessel. Having an MMC application checklist helps to streamline the application process and reduce the likelihood of errors, which can cause delays or even result in the rejection of the application. The checklist also ensures that all the required information is collected and organized, making it easier for both the seafarer and the authorities to keep track of the application’s progress.