be installed in such way as to ensure that the light shows over the Р required arcs of visibility, and should satisfy the required vertical separation and Р location requirements in all normal operating trim conditions; and Р Р .4 Equipment for operation of the manoeuvring light, mounted in accordance with Р COLREGs, should be located at conning position. The equipment may be located Р near the steering wheel or the autopilot/track control.Р10 Maintenance Р Р10.1 NLs should be so designed that the lamp specified by the manufacturer can be efficiently Рand readily replaced, without elaborate recalibration or readjustment. Р Р10.2 NLs, NLCs and associated equipment should be so constructed and installed, as Рnecessary, that they are readily accessible for inspection and maintenance purposes.