Testing may be done in the following: Certain groups of people, commonly including students, athletes, and prisoners People who are applying for or who already hold certain types of jobs (eg, pilots, commercial truck drivers) People who have been involved in motor vehicle or boating accidents or accidents at work People who have attempted suicide by unclear means People in a court-ordered treatment program or with terms of probation or parole requiring abstinence (to monitor adherence) People in a substance abuse treatment program (as a standard feature, to obtain objective evidence about substance abuse and thus optimize treatment) People required to participate in a drug testing program as part of custody or parental rights Members of the military Notification or consent may be a requirement before testing, depending on jurisdiction and circumstances.