A runway that uses a non-precision approach does NOT have which of the following markings?

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A non-precision approach runway typically has certain essential markings that assist pilots in the landing process. In this context, touchdown zone markings are specifically associated with precision approach runways, which provide pilots with additional visual guidance during the critical stages of landing. These markings indicate the area of the runway where the aircraft ideally should touch down for a safe landing.

In contrast, non-precision approach runways do not have touchdown zone markings because they do not provide the same level of guidance or precision as precision approaches. Pilots using non-precision approaches rely more on lateral and vertical guidance provided by navigational aids rather than specific visual cues on the runway itself, leading to the absence of these additional markings.

Centerline markings, threshold markings, and side stripe markings are all present on both types of runways, as they are fundamental to ensuring safe navigation and landing procedures. Therefore, the absence of touchdown zone markings distinguishes non-precision approach runways from their precision counterparts.