Each opioid treatment program shall have written procedures for toxicology screening that include, at a minimum:(A) Requirement that an initial toxicology screening be performed for each prospective patient as part of the documented physical evaluation completed by a physician prior to admission. The results of all tests must be received within fourteen days following admission.(B) Requirement that a toxicology screening be performed monthly for each patient. These screenings may be delayed if personal protective equipment is not available. see full law