There are many various types of drug and alcohol abuse rehab facilities in Ontario which alcohol and drug addicted people can be helped from. As an example, there are substance abuse rehab services which may are geared towards an individual with a short history of substance abuse and might benefit from a short term drug and alcohol rehabilitation program which will require the treatment client to stay in rehabilitation for 30 days or less. Then there are more extensive and long term drug and alcohol abuse rehab centers which require a stay of 3 months or more, which is decided on the individual's history of drug abuse and other variables including co-occurring psychological disorders. Substance abuse treatment programs in Ontario can be completed on an outpatient basis or an inpatient basis, with inpatient substance abuse treatment services providing substantially superior results as a result of a higher quality of rehab facility.