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b) Use of Radar for Instrument Approaches
Associated with the Radar endorsement are two additional rating endorsements which relate to the use of surveillance equipment by controllers to provide instrument approaches. These are the Precision Approach Radar and the Surveillance Radar Approach rating endorsements.
Before a controller can hold one of these endorsements he must already hold the Radar endorsement (see Figure 6).
Precision Approach Radar (PAR) Endorsement entitles the holder to provide ground controlled precision approaches to aircraft on the final approach to a runway using precision approach radar equipment.
Surveillance Radar Approach (SRA) Endorsement entitles the holder to provide ground controlled non-precision approaches to aircraft on the final approach to a runway using surveillance equipment.
c) Automatic Dependent Surveillance (ADS)
The ADS rating endorsement to the Approach Control Surveillance rating indicates that ADS is used as the surveillance equipment. It entitles the holder to use ADS in the provision of the following services: Approach Control, Terminal Control, Special Tasks and Offshore.
d) Multilateration (MLT)
The Multilateration (MLT) rating endorsement to the Approach Control Surveillance rating indicates that multilateration is used as the surveillance equipment. It entitles the holder to use multilateration in the provision of the following services: Approach Control and Offshore.
e) Terminal Control (TCL)
The Terminal Control rating endorsement entitles the holder to provide an air traffic control service with the use of radar or ADS in airspace designated as a terminal area and/or adjacent sectors designated for the provision of terminal control.
Terminal control starts at a point where the en-route controller hands over responsibility to the terminal controller and ends at a point where the terminal controller hands over to the nominated Aerodrome or Approach controller. The airspace, including the TMA and adjacent sectors, within which a terminal control service is provided must be approved by the CAA and specified for the purpose in the unit’s MATS Part 2.
To be granted a Terminal Control rating endorsement a controller must hold a Radar or ADS rating endorsement to an Approach or Area Control Surveillance rating.
f) Offshore (OFF)
An offshore rating endorsement is issued to indicate the specialist skills associated with the provision of air traffic control services to aircraft flying to and from offshore oil and gas installations and to other aircraft operating in the vicinity of these aircraft.
The offshore rating endorsement entitles the holder to provide the air traffic control services associated with an offshore service. This rating endorsement is only required for sectors where the CAA has determined that the level and complexity of the task requires a controller to hold it.
To be granted an Offshore rating endorsement a controller must hold a Radar or ADS or Multilateration rating endorsement to an Approach or Area Control Surveillance rating.
g) Special Tasks (SPT)
The Special Tasks rating endorsement is issued to indicate the specialist skills associated with the provision of air traffic control services to aircraft flying for the purposes of research and development of aircraft, aircraft equipment and systems and which are not flying in accordance with normal aviation practice, and to other aircraft in the vicinity of these aircraft.
The Special Tasks rating endorsement entitles the holder to provide the air traffic control services associated with the provision of a Special Tasks service. This endorsement is only required at units where the CAA has determined that the level and complexity of the task requires a controller to hold it.
To be granted a Special Tasks rating endorsement a controller must hold a Radar or ADS rating endorsement to an Approach or Area Control Surveillance rating.

Figure 6 Approach Control Surveillance Rating and Endorsements
　
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