reg 12 Reporting of medical conditions
(1) A person who is a seafarer who holds a medical fitness certificate and who— (a) is, or is likely to be, absent from work for a period of thirty days or more due to a medical condition, or (b) develops a significant medical condition, must report that medical condition as soon as practicable. (2) A report made in accordance with paragraph (1) must be made— (a) in the case of a person who has been issued with a certificate of medical fitness, to the authority which issued that certificate, (b) in any other case, to a medical practitioner. (3) If a seafarer must make the report required by paragraph (1), the validity of that seafarer's medical fitness certificate or certificate of medical fitness is suspended from the date on which it first becomes practicable for that seafarer to make the report until the date (if any) on which a medical practitioner or the authority (as appropriate) has assessed, if necessary by conducting a medical examination of the seafarer, that the seafarer is fit having regard to the medical standards specified by the Secretary of State in Merchant Shipping Notice 1839(M) . (4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .