part 4 checklist

4.1  electric propulsion installation complies with Part 3 of these Standards
  electric propulsion installation complies with British Standards
  electric propulsion installation complies with IEE Regulations

4.2 batteries stowed in accordance with IEE Regulations
  batteries adequately ventilated

4.3 propulsion motor securely installed

4.4 propulsion motor has an effective means of reversing
  propulsion motor has an effective means of reversing operable from steering position

4.5 master switch fitted
  master switch disconnects supply to propulsion motor
  master switch operable from steering position

4.6 charging leads have 3 core flexible cable
  charging leads of adequate current carrying capacity
  charging leads of suitable construction and grade
  charging leads splash-proof to BS EN 60309 Part 2

4.7 charging panel adequately ventilated
  charging panel has a positive switch fitted
  charging panel has a warning light fitted

4.8  battery-exhaust ventilation fan on automatic switch

4.9 motor compartment adequately ventilated
  controller compartment adequately ventilated

  All checklist items relevant to the boat's installations are mandatory passes for non-private vessels