07/15/2007 at 03:00 PM EDT
After more than six weeks in rehab, Lindsay Lohan
has completed her stint at Malibu treatment center Promises, PEOPLE has learned.
Lohan's rep released this statement on Sunday: "On Friday, July 13, 2007, Lindsay Lohan successfully completed her 45 days of residential and extended care treatment at Promises. She has transitioned to an intensive outpatient program, which includes attendance at daily AA meetings, outpatient therapy and daily testing. On her own, she has also made the decision in support of her sobriety to wear an alcohol monitoring bracelet. In part she is wearing the bracelet so there are no questions about her sobriety if she chooses to go dancing or dining in a place where alcohol is served."
Rep Leslie Sloane says of her client: "She's doing great. Lindsay is working hard on her sobriety and we are all supporting her."
The actress (who quietly turned 21 on July 2
) had a chance to show off the bracelet – which she wears on her ankle – Saturday night at Pure Nightclub in Las Vegas, where she sipped an energy drink and hung out with about ten friends. Says a clubgoer: "A lot of the attention was placed on Lindsay and she was smiling – really enjoying the evening."
Reporting by KIMBERLY LANSINGEvery Monday, catch up with PEOPLE and see What You Missed Over the Weekend!