VMC descent and Visual Approach

[delay undetermined]

Here is both direct from Mats part 1 (uk).

MATS Part 1, Section 1 Chapter 3,

5.5

VMC Climb and Descent

To avoid excessive delays to traffic when radar is not available, controllers may
authorise an aircraft to climb or descend in VMC provided:
a) essential traffic information is given;
b) the pilot of the aircraft climbing or descending agrees to maintain his own
separation from other aircraft;
c) it is during the hours of daylight;
d) the aircraft is flying in visual meteorological conditions;
e) the manoeuvre is restricted to Class D, E, F and G airspace at or below FL 100; and
f) the aircraft is not in CAS-T.

1)


Mats part 1 Section 3, Chapter 1

12 Visual Approach

12.1 To expedite traffic at any time, IFR flights may be authorised to execute visual
approaches if the pilot reports that he can maintain visual reference to the surface and
a) the reported cloud ceiling is not below the initial approach level; or
b) the pilot reports at any time after commencing the approach procedure that the
visibility will permit a visual approach and landing, and a reasonable assurance
exists that this can be accomplished.
12.2 Standard separation shall be effected between such aircraft and other IFR and/or
SVFR aircraft.
12.3 Controllers shall exercise caution in initiating a visual approach when there is reason
to believe that the flight crew concerned is not familiar with the aerodrome and its
surrounding terrain.