Most debris from a remodel, roof job, or cleanout can go in a container. California's disposal rules and the receiving facility decide the rest.
CalRecycle keeps a list of wastes banned from the trash. It includes all household batteries, fluorescent tubes, latex and oil-based paint, solvents, pesticides, antifreeze, motor oil and filters, and propane tanks. Tires are on the list too, since they can breed mosquitoes and feed fires.
Building materials need care as well. The state treats treated wood with chemical preservatives as hazardous waste, and asbestos may be found in older roofing, flooring, siding, and cement. Electronics like TVs, monitors, laptops, and microwaves also stay out of the trash in California.
The City of Simi Valley runs a household hazardous waste drop-off by appointment on the third Saturday of every other month. It's for residents only, and it accepts paint, batteries, pool chemicals, and similar items. Call Public Works at 805-583-6321 for a time slot and location.
If you're not sure about an item, ask your account manager before it goes in.