Colorado Revised Statutes Title 35. Agriculture § 35-11-103. Chemigation permit

(1) On and after January 1, 1990, no person shall apply or authorize the application of chemicals to land or crops through the use of chemigation unless such person obtains a chemigation permit from the department.

(2) On and after July 1, 1987, a person may obtain, pursuant to section 35-11-105, a provisional chemigation permit from the department for the application of chemicals to land or crops through the use of chemigation.

(3) Nothing in this section shall require a person to obtain a chemigation permit to pump or divert water mixed with any chemical to or through an open discharge system.