TMZ has learned ... Lindsay Lohan will check herself into rehab today.
We've learned the facility is in Southern California. It is not Promises -- she's been there, done that.
Lindsay wants to be at a facility that is close so friends and family can visit, but we're told the facility isn't bending the rules for LiLo.
We're told it's a live-in facility and the plan is for Lindsay to stay there until her court hearing next month, and maybe longer.
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