All adult/master competitors must meet the required weight for their division on the day of the event or they will be disqualified (Juveniles and younger will be allowed a 2lb weight allowance).
Adults can weigh in three hours before the scheduled start time for their division. If you are doing gi and no-gi you only need to weigh in once. If you make your gi weight you will be recorded as having made your no-gi weight. You must register for the same weight class in no gi as for gi. If you are just doing no gi then you must make the posted no gi weight.