Colorado Revised Statutes Title 8. Labor and Industry § 8-42-112.5. Limitation on payments--use of controlled substances

(1) Nonmedical benefits otherwise payable to an injured worker are reduced fifty percent where the injury results from the presence in the worker's system, during working hours, of controlled substances, as defined in section 18-18-102(5), C.R.S., that are not medically prescribed or of a blood alcohol level at or above 0.10 percent, or at or above an applicable lower level as set forth by federal statute or regulation, as evidenced by a forensic drug or alcohol test conducted by a medical facility or laboratory licensed or certified to conduct such tests. A duplicate sample from any test conducted must be preserved and made available to the worker for purposes of a second test to be conducted at the worker's expense. If the test indicates the presence of such substances or of alcohol at such level, it is presumed that the employee was intoxicated and that the injury was due to the intoxication. This presumption may be overcome by clear and convincing evidence.

(2) As used in this section, “nonmedical benefits” means all benefits provided for in articles 40 to 47 of this title other than disbursements for medical, surgical, nursing, and hospital services, apparatus, and supplies.