(1) Any person who deposits, throws, or leaves any litter on any public or private property or in any waters commits littering.

(2) It shall be an affirmative defense that:

(a) Such property is an area designated by law for the disposal of such material and the person is authorized by the proper public authority to so use the property; or

(b) The litter is placed in a receptacle or container installed on such property for that purpose; or

(c) Such person is the owner or tenant in lawful possession of such property, or he has first obtained written consent of the owner or tenant in lawful possession, or the act is done under the personal direction of said owner or tenant.

(3) (a) The term "litter" as used in this section means all rubbish, waste material, refuse, garbage, trash, debris, or other foreign substances, solid or liquid, of every form, size, kind, and description.

(b) The phrase "public or private property" as used in this section includes, but is not limited to, the right-of-way of any road or highway, any body of water or watercourse, including frozen areas or the shores or beaches thereof, any park, playground, or building, any refuge, conservation, or recreation area, and any residential, farm, or ranch properties or timberlands.

(4) Except as otherwise provided in sections 33-15-108 (2) and 42-4-1406, C.R.S., littering is a class 2 petty offense punishable, upon conviction, by a mandatory fine of not less than twenty dollars nor more than five hundred dollars upon a first conviction, by a mandatory fine of not less than fifty dollars nor more than one thousand dollars upon a second conviction, and by a mandatory fine of not less than one hundred dollars nor more than one thousand dollars upon a third or subsequent conviction.

(5) It is in the discretion of the court, upon the conviction of any person and the imposition of a fine under this section, to suspend any or all of the fine in excess of the mandatory minimum fine upon the condition that the convicted person gather and remove from specified public property or specified private property, with prior permission of the owner or tenant in lawful possession thereof, any litter found thereon, or upon the condition that the convicted person pick up litter at a time prescribed by and a place within the jurisdiction of the court for not less than eight hours upon a first conviction or for not less than sixteen hours upon a second or subsequent conviction.

(6) Whenever litter is thrown, deposited, dropped, or dumped from any motor vehicle in violation of this section, the operator of said motor vehicle is presumed to have caused or permitted the litter to be so thrown, deposited, dropped, or dumped therefrom.

(7) In addition to those law enforcement officers and agencies of this state and the political subdivisions thereof authorized to enforce this section, the officers of the Colorado state patrol and the district wildlife managers and other commissioned officers of the division of parks and wildlife are expressly authorized, empowered, and directed to enforce the provisions of this section.