In 1997, Daniel was hired as a consultant to the NMB, tasked with integrating technology into the mediation and arbitration programs of the Board. In 2001, he was hired as the Director of Dispute Resolution for the Board, and he spent several years developing an ADR program to compliment the statutory mediation and arbitration programs required by the Railway Labor Act of 1936. In 2012 he was appointed as Chief of Staff, a position he held until he retired from the NMB in 2017. Duing his tenure at the NMB, he worked with Board Member Harry Hoglander to update and improve the rail arbitration program. When the revisions of the program began, there were cases filed and unheard that went back as far as twenty years. At his final address to the Railroad Referees, Daniel was able to announce that “for the first time in living memory” every rail arbitration case that had been filed at the NMB was funded and ready for hearing.