Colorado could be close to enacting a statewide ban that would outlaw smoke in most public places except casinos.
Gov. Bill Owens is expected to sign the bill when it reaches him.
His spokesman Dan Hopkins says he still wants to review the final language of the bill before he signs it.
The Senate approved the plan yesterday.
The House is expected to vote for it as soon as today.
Under the ban, smoking would be banned in restaurants and bars starting July First.
It will still be allowed, however, in cigar bars, the smoking lounge at Denver International Airport, and mountain casinos.
Twelve other states have already passed similar smoking bans including Utah, where Governor Jon Huntsman signed the law on Thursday.