Most household and renovation debris is fine. The hard limits come from Pennsylvania's landfill rules, and they are specific.
Under the state rules a landfill cannot take explosive waste or hazardous waste at all. Bulk liquids are out, and a sealed container of liquid can only go in if it holds less than a gallon. Lead acid batteries are banned outright, and so is any load made up mostly of leaf waste. Radioactive material is barred, and special handling or industrial residual waste needs the state's written approval before a landfill may accept it.
On top of that, paint, solvents, fuel, used oil, and asbestos never belong in a standard container.
Scranton's own rules draw a useful line on construction debris. Clean soil, rock, stone, gravel, and unused brick, block, and concrete are not treated as demolition material when they are kept separate and used as fill, and the same goes for trees, brush, and stumps from land clearing. Keeping those loads separate often saves money. The City also requires every roll-off carrying waste to be tightly covered in transit, which is why loads are tarped on the way out.
Anything you are unsure about, ask your account manager before it goes in.