There is some flexibility, but the requirement is that the resident must obtain 160 hours of experience involving the evaluation of inpatients (who are under the care of another physician for a primary medical, surgical, obstetrical or psychiatric condition) regarding a secondary problem related to substance abuse. For example, this experience could be through participating with a medical/psychiatric liaison service or a general medical consult service. Another way to accomplish this would be to have the addiction medicine resident “embedded” with a general medical or trauma surgery service in a general hospital, or in an inpatient service of a specialty hospital (such as a children‟s, women‟s, or psychiatric hospital).