Section 4-1 - Effective Date and Grandfathering (a) Effective Date. All personnel providing substance abuse services who are hired by a program after the effective date of these Standards shall be either substance abuse professionals or shall be substance abuse counselors, substance abuse assistants, or substance abuse technicians working under the direct, documented supervision of a substance abuse professional. (b) Grandfathering. All personnel providing substance abuse services in substance abuse programs certified by the Division prior to the effective date of these Standards shall be eligible to continue providing those services, whether in their current place of employment or in any other substance abuse program certified under these Standards.