On the day of the trial, a tracklayer follows the marked track and removes any marks that have been placed on the track, then leaves articles of clothing on the track as specified by the steward or judge, including one at the end of the track. After a specified time, depending on the difficulty of the track and the requirements of the rules of the organization, the dog and handler is directed to the track and find the tracklayer and articles as required. The dog is usually worked on a 10-meter or (30-foot) lead, but the length of lead actually used depends on the terrain.