NCAA team: 6 singles players + 3 doubles teams per dual match; Lineup: 1-6 singles in order of ability; 3 doubles teams; Officials: 1 chair umpire per court (or 2-3 umpires per court at championship-level), line judges or electronic line-calling, tournament referee, dual-match referee
Why people argue about this
People often assume that since players self-call their lines without umpires in non-championship matches, they're allowed to cheat by calling themselves as winners even if they lost. But actually, the key fact is that NCAA rules require players to call out scores accurately and honestly for all matches, including these unofficial ones - whether or not there's an official watching.