Article 12 Permanent lights, navigational safety aids and colour

After the completion of the tidal works, the undertaker must exhibit every night from sunset to sunrise such lights, if any, and take such other steps for the prevention of danger to navigation as Trinity House may from time to time direct.

The undertaker must exhibit every night from sunset to sunrise lights for the prevention of danger to aircraft, of a shape, colour and character as directed by the Civil Aviation Authority.

Unless the National Assembly otherwise directs, the undertaker must ensure that so much of any wind turbine as is above the level up to which Trinity House direct colouring for navigational safety reasons, and all nacelles and blades, are painted light grey.