| Medical Parameter | Deck (DNS / BSc Nautical) | Engine (Marine Engineering) | GP Rating | Catering / Galley |
|---|---|---|---|---|
| Physical Fitness | Must be medically fit | Must be medically fit | Must be medically fit | Must be medically fit |
| Minimum Height | 157 cm | 157 cm | 157 cm | 157 cm |
| Weight | Proportionate to height & age | Proportionate to height & age | Proportionate to height & age | Proportionate to height & age |
| Chest Expansion | Minimum 5 cm | Minimum 5 cm | Minimum 5 cm | Minimum 5 cm |
| Eyesight | 6/6 & 6/9 | 6/9 & 6/18 | 6/12 each eye | 6/12 & 6/24 |
| Colour Vision | Normal (Ishihara Test) | Normal | Normal | Acceptable |
| Spectacles | Generally not permitted | Allowed within limits | Allowed | Allowed |
| Hearing | Whisper heard at 5 m | Whisper heard at 5 m | Whisper heard at 5 m | Whisper heard at 5 m |
| Blood Pressure | Normal (<140/90 mmHg) | Normal (<140/90 mmHg) | Normal (<140/90 mmHg) | Normal (<140/90 mmHg) |
| Skeletal Structure | No bow legs, knock knees, flat feet | Same | Same | Same |
| Major Diseases | No TB, epilepsy, heart disease | Same | Same | Same |
| Medical Certificate | DG Shipping Approved Doctor | DG Shipping Approved Doctor | DG Shipping Approved Doctor | DG Shipping Approved Doctor |