Systems and methods for controlling autonomous vehicle test trips are provided. In one example embodiment, a computer implemented method includes obtaining, by a computing system, data indicative of a test trip index associated with an autonomous vehicle. The test trip index includes a plurality of test trips for the autonomous vehicle and each test trip is associated with one or more test trip parameters. The method includes obtaining, by the computing system, data indicating that the autonomous vehicle is available to travel in accordance with at least one of the test trips of the test trip index. The method includes selecting, by the computing system and from the test trip index, at least one selected test trip for the autonomous vehicle. The method includes causing, by the computing system, the autonomous vehicle to travel in accordance with the test trip parameters associated with the at least one selected test trip.