When conducting an approach made to CAT 1 limits, what are the appropriate limits or restrictions?

When conducting an approach made to CAT 1 limits, what are the appropriate limits or restrictions?

• A. No restrictions
• B. 1200/600 RVR, 200' DA
• C. 1200 RVR
• D. MDA, DH or DA

Answer: (B)

CAT I limits are about having a defined decision point and enough visibility to decide to land or go missed. For CAT I, you must have a decision altitude (or height) of 200 feet and meet minimum visibility measured as Runway Visual Range. The pairing of 1200/600 RVR with a 200-foot DA reflects the published minima that allow a CAT I approach to be flown: you need sufficient visual reference to continue below the missed approach point, and the RVR values show the required runway visibility across the approach segments. If visibility is below those minima, the CAT I approach is not authorized. The other options either ignore these required minima or don’t specify the necessary combination of visibility and decision altitude.

CAT I limits are about having a defined decision point and enough visibility to decide to land or go missed. For CAT I, you must have a decision altitude (or height) of 200 feet and meet minimum visibility measured as Runway Visual Range. The pairing of 1200/600 RVR with a 200-foot DA reflects the published minima that allow a CAT I approach to be flown: you need sufficient visual reference to continue below the missed approach point, and the RVR values show the required runway visibility across the approach segments. If visibility is below those minima, the CAT I approach is not authorized. The other options either ignore these required minima or don’t specify the necessary combination of visibility and decision altitude.