Reforms to executive pay, benefits, travel and entertainment expenses instituted by the Smithsonian Institution in the wake of its former chief’s resignation will require time and constant vigilance to prove successful, a new report concludes.

A year afterthe exit of embattled Secretary Lawrence Small amid outrage into his luxurious tenure, the Smithsonian’s Board of Regents has in place revised policies for setting executive pay, leave and benefits, the Government Accountability Office found. But systemwide reviews continue into travel procedures, entertainment expenses, contracting and internal controls, the GAO reported, and implementing those reforms throughout the massive organization will be challenging and take years.