Rules relating to the fixing of end marker buoys
Article 17
End marker buoys shall be fixed to passive gear as follows: (a) the buoy in the western sector (meaning the half compass circle from south through west to and including north) shall be rigged with two flags, two striped luminous bands, two lights and a label referred to in Article 13; (b) the buoy in the eastern sector (meaning the half compass circle from north through east to and including the south) shall be rigged with one flag one striped luminous band, one light and a label referred to in Article 13.