Which condition triggers issuing both midpoint and rollout RVR for a runway's touchdown RVR?

• A. either midpoint or rollout is less than 2,000 feet and touchdown RVR is greater than midpoint/rollout
• B. both midpoint and rollout are below 2,000 feet
• C. touchdown RVR is less than 2,000 feet
• D. touchdown RVR and any RVR are all above 2,000 feet

Answer: (A)

RVR reporting provides three values along a runway: touchdown, midpoint, and rollout. When visibility is restricted, pilots need to know not just the touchdown condition but how it’s varying along the runway. The condition that calls for issuing both the midpoint and rollout RVR for the touchdown RVR is when either the midpoint or rollout value is less than 2,000 feet while the touchdown RVR is greater than that lower value. In other words, if one of the outer RVRs drops below 2,000 and the touchdown RVR remains higher, you publish both the midpoint and rollout RVRs in addition to the touchdown value. This gives a complete picture of where visibility is poorest along the runway.

If both the midpoint and rollout are below 2,000 feet, or if the touchdown RVR is also below 2,000, the situation is handled differently, but the specific trigger described is the touchdown value being higher than a low outer RVR value.