; (ii) relevant metrics, including reduction in scores under the post-traumatic stress disorder check-list (PCL–5), improvement in psychosocial function, and therapeutic compliance; and (iii) reducing the dependence of participants on prescription narcotics and psychotropic medication. (g) Service dog training instructor defined In this section, the term service dog training instructor means an instructor who provides the direct training of veterans with post-traumatic stress disorder and other post-deployment issues in the art and science of service dog training and handling.