The Trump administration is unlawfully delaying a rule that would allow foreign entrepreneurs to travel or remain in the United States for at least two years to work on business development, according to a new lawsuit that startups and venture capital advocates filed Tuesday in Washington federal district court.

The plaintiffs include the National Venture Capital Association, the San Francisco-based data visualization company Omni Labs Inc., the online appointment-booking platform Occasion, based in Chicago and the founders of the digital payment collection company LotusPay.

The suit comes as the Trump administration stalls dozens of rules from the Obama era, an approach that has aroused complaints that the delay tactics are really intended to kill regulations—everything from environmental protection to workplace safety. An analysis published in July by the Center for Progressive Reform, a left-leaning think tank, found that 42 regulations have been delayed by the Trump administration and another 13 have been placed under review.