SALT LAKE CITY (AP) — Utah officials are bullish about the prospects of hosting another Winter Olympics, but a co-chair of a new exploratory committee said Thursday they’ll have to find a way to reduce costs to make it feasible.

Fraser Bullock, who was a key player in Salt Lake City’s 2002 Winter Games, said he expects far less U.S. ad sponsorship money to be available to help fund the games this time. That’s because a bid for the 2026 or 2030 Winter Games would mean the US would host back-to-back Olympics with Los Angeles having been awarded the 2028 Summer Games.

Bullock estimated Salt Lake City would need to host the games for $1.2 billion to $1.3 billion, not including extra federal funds for security.

That’s less than the $1.67 billion Utah officials estimated it would cost when it last did a detailed analysis.

Making it more complicated is that Salt Lake City must defer to Los Angeles since they’ve already been awarded their games.

“We have to make sure there are enough sponsor dollars to go around,” Bullock said. “They are the top priority. We need to make sure anything we do only enhances the success of their games.”

Bullock spoke at a news conference with other members of an exploratory committee that was unveiled this week after the U.S. Olympic Committee board said Friday that it was moving forward with discussions about bringing the Winter Games to America for either 2026 or 2030.

The USOC has until next March to pick a city for 2026; those expressing interest are Salt Lake City, Denver and Reno, Nevada. The hosting rights for those games would set to be awarded in July 2019.

Outside the U.S, cities that have expressed interest include Sion, Switzerland; Calgary, Canada; Lillehammer, Norway; and Sapporo, Japan. Switzerland’s federal government said Wednesday it is prepared to pay almost 1 billion Swiss francs ($1.02 billion) toward Sion hosting the 2026 Winter Olympics.