A call is considered to be in rotation when it is made by a player at his RHO’s turn to call if that opponent is required by law to pass.
A call is considered to be in rotation when made by a player whose turn it was to call before rectification has been assessed for a call out of rotation by an opponent. Making such a call forfeits the right to rectification for the call out of rotation. The auction proceeds as though the opponent had not called at that turn. Law 26 does not apply, but see Law 16C2.