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9.4.2 The radar controller shall be responsible for maintaining radar separation between succeeding aircraft on the same final approach, except that the responsibility may be transferred to the aerodrome controller in accordance with procedures prescribed by the appropriate ATS authority and provided radar information is available to the aerodrome controller.
9.4.3 Transfer of control of succeeding aircraft on final approach from the radar controller to the aerodrome controller shall be effected in accordance with procedures prescribed by the appropriate ATS authority.
9.4.4 Transfer of communications to the aerodrome controller should be effected at such a point or time that clearance to land or alternative instructions can be issued to the aircraft in a timely manner.
9.5 Vectoring for visual approach
Note.— See also Part IV, Section 9.

9.5.1 The radar controller may initiate radar vectoring of an aircraft for visual approach provided the reported ceiling is above the minimum altitude applicable to radar vectoring and meteorological conditions are such that, with reasonable assurance, a visual approach and landing can be completed.
9.5.2 Clearance for visual approach shall be issued only after the pilot has reported the aerodrome or the preceding aircraft in sight, at which time radar vectoring would normally be terminated.
9.6 Radar approaches

9.6.1 General provisions
9.6.1.1 During the period that a radar controller is engaged in giving surveillance radar or precision radar approaches, he or she should not be responsible for any duties other than those directly connected with such approaches.
9.6.1.2 Radar controllers conducting radar approaches shall be in possession of information regarding the obstacle clearance altitudes/heights established for the types of approach to be conducted.
9.6.1.3 Prior to commencement of a radar approach, the aircraft shall be informed of:
a)  the runway to be used;
b)  the applicable obstacle clearance altitude/height;
c)  the angle of the nominal glide path and, if so prescribed by the appropriate ATS authority or requested by the aircraft, the approximate rate of descent to be maintained;
Note.— See the Air Traffic Services Planning Manual (Doc 9426) regarding calculation of approximate rates of descent.
d)  the procedure to be followed in the event of radio-communication failure, unless the procedure has been published in Aeronautical Information Publications.

9.6.1.4 When a radar approach cannot be continued due to any circumstance, the aircraft should be immediately informed that a radar approach or continuation thereof is not possible. The approach should be continued if this is possible using non-radar facilities or if the pilot reports that the approach can be completed visually; otherwise an alternative clearance should be given.
9.6.1.5 Aircraft making a radar approach should be reminded, when on final approach, to check that the wheels are down and locked.
9.6.1.6 Unless otherwise prescribed by the appropriate ATS authority, the radar controller should notify the aerodrome controller or, when applicable, the non-radar controller when an aircraft making a radar approach is approximately 15 km (8 NM) from touchdown. If landing clearance is not received at this time, a subsequent notification should be made at approximately 8 km (4 NM) from touchdown and landing clearance requested.
9.6.1.7 Clearance to land or any alternative clearance received from the aerodrome controller or, when applicable, the non-radar controller should normally be passed to the aircraft before it reaches a distance of 4 km (2 NM) from touchdown.
9.6.1.8 An aircraft making a radar approach should:
a)  be directed to execute a missed approach in the following circumstances:
i)  when the aircraft appears to be dangerously positioned on final approach; or
ii)  for reasons involving traffic conflictions; or
　
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