In order to be licensed under this subtitle, an outpatient treatment level 1 program shall provide outpatient substance-related disorder treatment based on a comprehensive assessment: For individuals who: Meet the ASAM Criteria for level 1; Have a physical and emotional status that allows the individual to function in the individual’s usual environment; and For adults, require services for fewer than 9 hours weekly, or, for individuals younger than 18 years old, require services for fewer than 6 hours weekly. An outpatient treatment level 1 program may provide the following services if the program’s license specifically authorizes the services: A withdrawal management service as described in Regulation .18 of this chapter; and An opioid treatment service as described in Regulation .19 of this chapter.