Prom Callers essentially "go down the list" of interested parents, sorted randomly. They explain the Invitation-Only Assignment requirements and answer questions. Parents then have the opportunity to decide if this position is really something they are able and willing to do, and if so, they are invited to accept the Special Assignment. Once the positions are filled, the callers stop calling. If you indicated you were interested in one of these positions but were not contacted, please assume all the available positions have been filled. If a family accepts an Invitation-Only Assignment but has already selected a task from the list of Task Choices, they may choose to remove themselves from their original Task Choice if the Invitation-Only Assignment will satisfy their Adult Participation Requirement.