The U.S. Department of Labor unveiled its final rules Wednesday to impose a fiduciary duty on broker-dealers who advise retirement savers, complex regulations that attorneys say should lead employers to up their compliance game by re-evaluating adviser relationships and taking a hard look at investment materials.

Robert S. Kaplan, an employee benefits attorney at Ballard Spahr LLP, similarly said that employers in the short term need to look at their arrangements with providers to see if the people they are working with are indeed fiduciaries.

In particular, Kaplan said employers have to make sure that providers who are offering individual retirement accounts rollovers, which allow employees to rollover 401(k) accounts into an IRA after they are no longer employed by a company, acknowledge in writing that they are fiduciaries.