The phrase "tougher restrictions" refers to stricter rules or regulations that are put in place to limit or control certain actions or behaviors. Full definition
Liberal opponents of the gun lobby often assume that the answer lies in tougher restrictions on ownership — but that isn't necessarily where the biggest gains could be made. (newscientist.com)
That's a particularly tough restriction in resort areas where many units are attractive investments as short - term vacation rentals. (realtormag.realtor.org)
As multiple cities and states take steps to regulate the home - sharing business, 2018 is expected to bring tougher restrictions. (cpexecutive.com)