Proposed new rules by the Office of Federal Contract Compliance Programs that would require that workers with disabilities make up at least 7 percent of federal contractors’ workforces would be difficult to enforce. But Ballard Spahr partner Constantinos G. Panagopoulos said the office likely will be more diligent in its efforts to audit businesses that don't reach that percentage.

"I would think the OFCCP would take a much closer look at those organizations," Mr. Panagopoulos said. He added that many federal contractors already have in place a framework for tracking and reporting this data because they already collect and retain demographic data such as race.