The new fiduciary rule issued yesterday by the Dept. of Labor, which is designed to address conflicts of interest among financial advisers, will require HR departments to review their arrangements with vendors that provide retirement-plan services, say experts.

“The definition of ‘fiduciary’ is being expanded, and HR will need to determine if they have vendors that will now fall under this category,” says Robert Kaplan, associate attorney in Ballard Spahr’s employee benefits and executive compensation group.

Many compliance duties under the new rule will be handled by vendors and record keepers, says Kaplan. However, in a few instances, HR may encounter vendors that refuse to recognize that they will now be considered fiduciaries—in such cases, HR will need to terminate the relationship, he says.

“There are some less-than-reputable vendors that don’t want to be held to the fiduciary standard, and they will probably be driven out of the business,” says Kaplan.