49 C.F.R. § 804.9
Along with the General Counsel's certification and presiding officer's statement referred to in § 804.6(d) , the NTSB shall maintain a complete transcript of electronic recording adequate to record fully the proceedings of each meeting, or a portion thereof, closed to the public. The NTSB may maintain a set of minutes in lieu of such transcript or recording for meetings closed pursuant to § 804.5 (h) or (j) . Such minutes shall fully and clearly describe all matters discussed and shall provide a full and accurate summary of any actions taken, and the reasons therefor, including a description of each of the views expressed on any item and the record of any rollcall vote. All documents considered in connection with any actions shall be identified in such minutes.
49 C.F.R. §804.9