A minimum of 18 hours of classroom instruction is needed to sufficiently address  the ART material. ART can be delivered using a variety of training schedule formats. Regardless of the schedule format, sufficient time must be allotted between training sessions for participants to practice and integrate the skills they have learned during the previous training session. Examples of schedule formats include delivering the modules over the course of 3 days (each consisting of 6 training hours), with 2-week intervals between each training day.