The last time the legislature made sweeping changes to Utah liquor laws was in 2009 when it did away with private clubs, but also instituted the Zion Curtain. Already established restaurants were grandfathered into the legislation and are not required to build the barriers. Because the requirement only applies to new restaurants, it creates confusion among patrons and an unequal playing field, said Melva Sine, president of the Utah Restaurant Association. Repealing the provision "would equalize the playing field for all restaurants."