USA -- Disabled golfers have sued Marriott International Inc. (NYSE: MAR), accusing the lodging giant of violating the Americans with Disabilities Act by not providing so-called "adaptive" golf carts.

Richard Thesing of California and co-plaintiff Lawrence Celano of Arizona filed suit in federal court in San Francisco earlier this week after they asked the company to provide the specialized cars, which can cost several thousand dollars more than conventional cars.

Thesing, 66, who is paralyzed from the waist down after a diving accident when he was 18, regularly uses the carts to lift him to a standing position before striking the ball.

Marriott, which operates some 40 golf courses around the world through its Marriott Golf division, declined to directly comment on the lawsuit.

"We are reviewing and evaluating the claims," said Tom Marder, a spokesman for Marriott. "As a matter of policy and practice, we comply with all laws and regulations governing accessibility to public accommodations."

Lawyers for the two plaintiffs said Marriott was violating the ADA, the 1990 federal statute that requires businesses to reasonably accommodate the disabled.

The suit seeks no monetary damages, but demands Marriott to provide golf carts for the disabled.

It's estimated that more than 300 courses across the country now provide cars for disabled golfers.

"It's unfortunate that it seems to require legal action to focus some golf course owners and operators on their responsibility to provide equal access to their facilities to all Americans. But if a person makes a request to have access to a golf course and is denied, there are no ADA cops out there to call," said Roger Pretekin, founder and president of SoloRider Management, which manufacturers the SoloRider single-rider golf cars used by many disabled golfers.

"The only thing you can do is file a legal action or give up and go home. And these people are not quitters."