D.C. Mun. Regs. tit. 19, r. 19-2423
Contestants shall be weighed in the presence of each other and of an official of the Commission at such time prior to the contest as deemed appropriate by the Commission.
If a contest is postponed for more than twenty-four (24) hours, each contestant shall weigh in again on the actual date of the contest.
A contestant shall appear at the time designated by the Commission for weighing in unless the contestant gives timely notice with a sufficient explanation and the Commission excuses the absence.
A contestant shall present the contestant's license and passport at the weigh-in. If the contestant fails to present the license or passport, the Commission may impose a fine of a minimum of twenty-five dollars ($ 25.00) and a maximum of one hundred dollars ($ 100.00) or bar participation by the contestant in the scheduled contest, or both.
D.C. Mun. Regs. tit. 19, r. 19-2423