Most construction, roofing, and cleanout debris is fine to load. Nevada's disposal rules and the transfer station set the limits.
The Nevada Division of Environmental Protection says used oil and batteries are not allowed in landfills. Friable asbestos has its own strict rules for handling, transport, and disposal, so it can't go in a standard container. Lead paint from a household job may go to a landfill, but paint waste from other sources needs testing first.
Nevada also restricts dumping waste tires in landfills, so keep tires out of your dumpster. Hazardous waste, liquids, paint, solvents, fuel, and propane tanks can't go in either.
Household hazardous waste has its own route. The state notes that residents can drop it off at the Douglas County Transfer Station by appointment. Refrigerators and other appliances with refrigerant need special handling, so mention them when you book.
If you're unsure about an item, ask your account manager before it goes in.