10. pants

Vertical

sectors

(a) The vertical sectors of

electric lights as fitted, with the exception of lights on

sailing vessels underway shall ensure that:

(i) at least the required minimum intensity is maintained at all

angles from 5 degrees above to 5 degrees below the

horizontal;

(ii) at least 60 per cent of the required minimum intensity is

maintained from 7.5 degrees above to 7.5 degrees below the

horizontal.

(b) In the case of sailing vessels underway the vertical sectors

of electric lights as fitted shall ensure that:

(i) at least the required minimum intensity is maintained at all

angles from 5 degrees above to 5 degrees below the

horizontal;

(ii) at least 50 per cent of the required minimum intensity is

maintained from 25 degrees above to 25 degrees below the

horizontal.

(c) In the case of lights other than electric these

specifications shall be met as closely as possible.