There are many different types of substance abuse rehab facilities in Norway which drug and alcohol addicted clients can take advantage of. As an example, there are alcohol and drug abuse rehabilitation centers which cater to a treatment client who has a short history of drug and alcohol abuse and would potentially find luck at a short term alcohol and drug rehab center which will require the treatment client to reside in rehabilitation for 4 weeks or less. For others there are much more intensive and long term alcohol and drug abuse treatment services which involve a stay of 90 days or more, depending on the individual's background of substance abuse and other factors such as co-occurring psychological disorders. Alcohol and drug abuse treatment services in Norway can be performed on an outpatient basis or an inpatient basis, with inpatient substance abuse treatment services resulting in substantially superior results due to a greater quality of treatment program.