In an effort to make drug rehabilitation can be available to persons with co-occurring psychological disorders, Partial Hospitalization drug treatment programs in Chantilly, Virginia can offer rehab in special hospital and mental health hospital settings for individuals who need rehabilitation. Partial Hospitalization the name for this type of drug and alcohol rehab program, due to the fact that the individual takes part in drug and alcohol treatment during the day and will then go home at night for about seven days per week. For this reason these drug and alcohol treatment centers are also known as Day Treatment. Partial Hospitalization drug rehabilitation programs address drug addiction disorders and psychological issues at the same time so that treatment staff can ensure that the treatment client doesn't fall back into drug use once drug rehab is complete.