(a) Employees subject to random testing shall be noticed at least thirty days prior to implementation of the testing program that they will be subject to random substance testing. The notice shall include information explaining the substance abuse testing procedures to be followed.

(b) Employees suspected of violating the policy prescribed in section 599.960 of these regulations shall be entitled to representation during any interrogative interviews with the affected employee that could lead to a decision by the appointing power to take adverse action against the employee, regardless of whether these interviews occur before or after the sample is taken. Employees shall also be entitled to representation in any discussions with the Medical Review Officer that occur under section 599.965 of these regulations.

(c) The sample collection process shall include the opportunity for the employee to provide information about factors other than illegal drug use, such as taking legally prescribed medication that could cause a positive test result. At the employee's option, this information may be submitted in a sealed envelope to be opened only by the Medical Review Officer if the test result is positive.

(d) The employee shall receive a full copy of any test results and related documentation of the testing process.

(e) All confirmed positive samples shall be retained by the testing laboratory in secure frozen storage for one year following the test or until the sample is no longer needed for appeal proceedings or litigation, whichever is longer. At the employee's request and expense the sample may be retested by that laboratory or another laboratory of the employee's choice.