*CSACs and CSAC-As may only provide services related to substance use disorder treatment

The wording is a little confusing, is there a way for the wording to become more specific? i.e.

Can individuals under supervision for either CSAC and/or CSAC-A provide services related to substance abuse disorder?

Are Certified addiction treatment professionals not allowed to provide substance use disorder treatment anymore?

Can individuals with CSAC and/or CSAC-A that also hold other license and certifications only provide substance use disorder treatment?