ISC (International Service Center) has only one function, to send mail on its way to the next location. Since some sorting operations take place only once a day, no package should be there for 24 hours. What confuses people is that after it is done there, it will be in transport, where tracking is not able to be done. Parcel tracking is done on machines at postal facilities.
Not to be confused with Psychologist. A psychiatrist is a physician who specializes in psychiatry, the branch of medicine devoted to the diagnosis, prevention, study, and treatment of mental disorders.
Psychiatrists are medical doctors (MDs) who graduate from medical school, have a year of medical internship, and have 3 years of residency in the assessment and treatment of mental health disorders. Psychologists have a doctoral degree in an area of psychology, the study of the mind and human behavior. Theyâre not medical doctors. A psychologist can have a PhD in philosophy or a PsyD in clinical or counseling psychology. Typically, they do 1-2 years of internship.