Stop Sexual Assault and Harassment in Transportation Act This bill directs certain aviation and rail transportation carriers (i.e., covered entities) and passenger vessels to issue a formal policy with respect to transportation sexual assault or harassment incidents. Such policy shall include a statement that no transportation sexual assault or harassment incident is acceptable under any circumstances. The bill expands the prohibition against interference with cabin or flight crew by including sexual assaults against such personnel and increasing the penalty for such interference. The Department of Transportation (DOT) shall establish a program to annually collect and maintain data from each covered entity on: (1) the number of transportation sexual assault or harassment incidents committed against passengers and personnel, and (2) the number of transportation sexual assault or harassment incidents reported to law enforcement. Such data must be made publicly available on the primary website of DOT.