Hilton pleaded no contest in January to reckless driving stemming from a Sept. 7 arrest in Hollywood.
Police said she appeared intoxicated and failed a field sobriety test. She had a blood-alcohol level of .08 percent, the level at which an adult driver is in violation of the law.
She was sentenced to 36 months probation, alcohol education and $1,500 in fines.
Two other traffic stops and failure to enroll in a mandated alcohol education program landed her back in court.
Should she report to the Century Regional Detention Center, Hilton will be living in a one- or two-person cell as a high-profile inmate, segregated from the general population for her own safety.
Her cell would be spartan: 12-by-8 feet with a toilet, sink and a window 6 inches wide, said Capt. Alice Scott, who oversees the 2,200-inmate facility she describes as "a very nice place."
Hilton can expect to receive three low-sodium meals a day, with dinner the only hot meal.
Inmates in segregation are allowed outside their cells for at least an hour each day to shower, watch television in the day room, participate in outdoor recreation or talk on the telephone, Scott said. There are a bank of phones that use prepaid phone cards _ cellular telephones and Blackberries aren't allowed.
She was ordered to report to the jail by the set date - or face 90 days behind bars.
Associated Press writers Sandy Cohen and Jeff Wilson contributed to this report.
