Briefly describe the scope and type(s) of discovery available (e.g., depositions, interrogatories, etc.):
33 CFR 403.9 permits the Board to convene prehearing conferences to discuss, inter alia, "(d) [t]he mutual exchange among the parties of documents and exhibits proposed to be submitted at the hearing." The Board also has authority to request discovery for itself. See 33 CFR 403.6 ("The Board may require further information, particulars or documents from any party").