Casper, WY Landscaping Rules: Composting (2026)

Casper's solid waste chapter treats composting as a city-facility function rather than a household-bin program. Section 8.32.010(A) defines compostable materials as refuse such as yard trimmings, tree branches and leaves that are capable of being diverted to the city compost site, distinguishing that category from ordinary garbage and refuse defined elsewhere in the same section. The same section's yard-waste definition draws a line around what qualifies: tumbleweeds, cactus, sagebrush and noxious weeds, as defined in Section 8.44.005(A), are not considered yard waste and cannot be diverted through this process.

Section 8.32.110 then sets the rules for getting compostable material to the city. Subsection A requires any tree limbs, branches and wood set out for the city's designated branch collection to be cut into lengths no longer than five feet, securely tied with rope, twine or tape, and to weigh no more than fifty pounds; branches that do not meet those specifications are not eligible for branch-collection pickup. Subsection B lets residents skip curbside collection altogether and drop yard waste, sod, topsoil, and cow and horse manure directly at the designated compost area of the Casper Regional Solid Waste Facility, and Subsection C places responsibility for hauling sod to that facility on the property owner.

The code does not prescribe a bin type, size or enclosure standard for home composting; enforcement instead centers on what goes into a curbside refuse container, since electronic and metal waste is separately barred from refuse containers under Section 8.32.115.