Most construction and cleanout debris is fine to load. California's disposal rules and the facility that takes your load decide what's left out.
CalRecycle says it's against the law to throw hazardous waste in the garbage, pour it down storm drains, or dump it on the ground. That rules out every kind of battery, fluorescent tubes and LED lights, latex and oil-based paint, aerosol cans, solvents, pesticides, and herbicides.
The list also covers antifreeze, motor oil and filters, tires, asbestos, and chemically treated wood. Compressed gas cylinders, electronics like TVs, computers, and printers, and anything with mercury, such as thermostats, are banned as well.
Liquids, sludge, and fuel don't belong in a dumpster either. Appliances and mattresses may be accepted but often cost extra, so mention them when you book.
If you have questions about a specific item, your account manager can check before it goes in.