FARGO (AP) - North Dakota's statewide smoking ban is marking its first anniversary this week, and there's talk of expanding it to include bars.

It could be a tough sell.

The state law that took effect last August bans indoor smoking in restaurants and most other public buildings. Bars are exempt. If they are in restaurants, hotels and bowling alleys, they are exempt if they are enclosed.

"I've not had the type of push for bars (to ban smoking) that we got for the restaurants from the public," said Rep. Clara Sue Price, R-Minot. "I think it's a tough sell for those looking to do that this session."

Sen. Ralph Kilzer, R-Bismarck, a sponsor of the current smoking restrictions, said he is not sure yet whether he would push for smoke-free bars.

Compliance with the state law appears to be high, said Kathleen Mangskau, the director of the state's Tobacco Prevention and Control Program.

About 80 percent of North Dakotans are nonsmokers, and smoke-free laws are a trend across the country, she said.

Dr. Terry Dwelle, the state health officer, said the anniversary marks "a year of healthier workplaces in North Dakota."

The Terrace Lanes bowling alley in Wahpeton reports no problems since the smoke ban took effect, said co-owner Nancy Diederich. The business enclosed its bar area to allow smoking there.

"Families coming in like the fact there's not smoking," she said.

Keith Evan, operations manager of the Green Mill in Fargo, said he wouldn't even call the state's smoking restrictions a speed bump at his business.

Al Sadowsky, owner of the Tiger Discount truck stop in Dickinson, also said his customers have accepted the ban.

"I think some of them (truckers) come from other states that have the same situation," Sadowsky said. "It really was not a big issue."

Brenda Stanford said her Home Style Cafe in Tioga took "a small hit" since going smoke-free, but she can name on one hand the customers who quit coming.

The North Dakota Association for the Disabled, which is supported by charitable gambling money, said it had to cut services because the smoking ban hurt bingo hall business.

Mary Barbere, owner of the Peacock Alley Bar and Grill in Bismarck, said the first two months of smoking restrictions were "rather scary" but business has since turned around.

"I think the smokers left and it took the nonsmokers that long to figure out where to go," she said.

Barbere thinks the state will eventually ban smoking in bars but said she still believes business owners should have the right to decide that.