# 11 - Restricted Visibility

Safe navigation procedures during reduced visibility conditions ensuring COLREGS compliance with enhanced bridge procedures, sound signals, and radar operation.

### Immediate Actions and Bridge Manning

```checklist
1. [ ] Master on Weather Conditions ............... INFORMED
2. [ ] Engine Room on Weather Conditions .......... INFORMED
3. [ ] Vessel Speed ................................ REDUCED
4. [ ] Additional Bridge Look-out ................... POSTED
5. [ ] Switch to Hand Steering .................... SELECTED
6. [ ] Engine Room on Standby for Manoeuvre .......... READY
7. [ ] All Watertight Doors ......................... CLOSED
8. [ ] Bridge ..................................... SILENCED
```

### Navigation Equipment Preparation

```checklist
9. [ ] AIS System .................................. CHECKED
10. [ ] Echo Sounder ................................ CHECKED
11. [ ] Fog Horn System .............................. TESTED
12. [ ] Navigation Lights ................................ ON
13. [ ] Radar, ARPA and ECDIS Systems ............... CHECKED
14. [ ] VHF Radio on Channel 16 with Volume ............. SET
```

### COLREGS Compliance Verification

```checklist
15. [ ] Rule 5 - Look-out
16. [ ] Rule 6 - Safe Speed for Conditions
17. [ ] Rule 19 - Conduct of Vessels in Restricted Visibility
18. [ ] Rule 35 - Sound Signals in restricted Visibility
```