getting to grips with CAT II CAT III operations(15)

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RVR minima for Category III approaches are a function of the aircraft available equipment and automatic landing system capability (fail-operational or fail-passive).
Figure 3.6 Category III RVR minima / ICAO
ICAO
Category III A  Category III B 
Fail-passive automatic landing system  Fail-operational automatic landing system 
DH  Not less than 15m (50ft)  Less than 15m (50ft) or no DH  Less than 15m (50ft) or no DH 
RVR  300m (note 1)  300m  100m 

Note 1:  For minima between 300m and 200m, RVR are restricted to operations conducted in accordance with specific criteria as specified in ECAC Doc 17 (or JAR-OPS) or AC120.28C.
Figure 3.7 Category III RVR minima / FAA
FAA
RVR AS A FUNCTION OF AUTOMATIC LANDING SYSTEM STATUS 
FAIL-PASSIVE SYSTEM  FAIL OPERATIONAL SYSTEM 
WITHOUT ROLL-OUT SYSTEM  WITH ROLL-OUT SYSTEM FAIL-PASSIVE FAIL-OPERA-TIONAL 
APPROACH CATEGORY  D H 
III A  50ft ≤ DH < 100ft  200m  200m  200m  200m 
III A  DH ≤ 50ft  Not authorized  200m  200m  200m 
III A  NO DH  Not authorized  200m  200m  200m 
III B  DH < 50ft  Not authorized  Not authorized  100m  50m 
III B  NO DH  Not authorized  Not authorized  100m  50m 

Refer to AC 120-28C for further details and update. Figure 3.8 Category III RVR minima / JAA
JAA
RVR AS A FUNCTION OF AUTOMATIC LANDING SYSTEM STATUS 
FAIL-PASSIVE  FAIL OPERATIONAL 
WITHOUT ROLL-OUT SYSTEM  WITH ROLL-OUT SYSTEM FAIL-PASSIVE FAIL-OPERA-TIONAL 
APPROACH CATEGORY  D H 
III A  DH < 100ft  200m (note 1)  200m  200m  200m 
III A  NO DH 
III B  DH < 50ft  Not applicable  Not authorized  125m  75m 
III B  NO DH  Not authorized  Not authorized  Not authorized  75m 

Note 1: For operations to approved RVR values less than 300m, a go-around is assumed in the event of an autopilot failure at or below DH.
3.3 FLIGHT CREW PROCEDURES
Operators must develop procedures and operational instructions to be usedby flight crews. These procedures and instructions must be published in theOperations Manual. All the instructions must be compatible with the limitations and mandatory procedures contained in the Approved Flight Manual.
3.3.1 ITEMS TO BE COVERED
The procedures and the operational instructions should cover normal and abnormal situations, which can be encountered in actual operations. For this purpose, authorities define items to be covered by these procedures and instructions. For quick reference, we provide a list of items as taken from the JAR OPS. Other regulations are very similar. According to the JAA, the following items must be covered
　
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