The Regulation for Medical exam of the Seafarer and Medical Institutions Article 4

Seafarers with any of the following conditions will not pass the medical or health examination:1. Suffering from an infectious disease specified in the Communicable Disease Control Act, and who have not undergone treatment for this disease.2. Unable to distinguish the colors red, green and blue; although this does not apply to the general affairs or a passenger department personnel.3. There are objective facts enough to recognize that the physical and mental conditions that are difficult to adapt to the work environment.Seafarers are also required to meet the following eyesight criteria:1. The aided visual acuity of officers responsible for a navigational watch and ratings that form part of a navigational watch, according to an eye chart test, must be at least 0.5 in both eyes at a distance of 5 meters; otherwise, it will be deemed as a ‘fail’.2. The aided visual acuity of officers responsible for an engineering watch and ratings that form part of an engineering watch, according to an eye chart test, must be at least 0.4 in either eye or at least 0.4 combined eyesight vision at a distance of 5 meters; otherwise, it will be deemed as a ‘fail’.3. The aided visual acuity of the ratings that do not form part of a watch, according to an eye chart test, must be at least 0.4 in both eyes at a distance of 5 meters; otherwise, it will be deemed as a ‘fail’.4. Officers, radio operators, and ratings of a navigational watch suffering from color blindness are considered a ‘fail’.Radio operators that cannot hear the second hand ticking on a chronograph at a distance of 30 cm in either ear are considered a ‘fail’.