There are numerous different types of alcohol and drug abuse rehab programs in Calvin which addicted clients can take advantage of. For example, there are drug and alcohol abuse rehab centers which may are geared towards a treatment client who has a short case of substance abuse and would potentially benefit from a short term drug rehab program which will require the treatment client to stay in treatment for 30 days or less. Then there are more intensive and long term alcohol and drug abuse rehabilitation programs which insist the individual commit to a stay of 90 days or more, which is decided on the individual's history of drug and alcohol abuse and other variables including co-occurring psychological disorders. Alcohol and drug abuse rehab services in Calvin can be completed as an outpatient or as an inpatient, with inpatient alcohol and drug abuse rehab services offering substantially superior success rates due to a higher quality of rehab program.