Section 20.1305 - Admissibility and weight of entries from logbooks(a) Any entry in any official logbook of a vessel concerning an offense enumerated in 46 U.S.C. 11501 , made in substantial compliance with the procedural requirements of 46 U.S.C. 11502 , is admissible in evidence and constitutes prima facie evidence of the facts recited.(b) Any entry in any such logbook made in substantial compliance with the procedural requirements of 46 U.S.C. 11502 may receive added weight from the ALJ.