New Hampshire bans more from its landfills than most states, and one of the bans surprises almost everyone.
Yard waste is illegal to landfill in New Hampshire. The state's disposal bans cover leaves, grass clippings, garden debris, and small or chipped branches, and it is also illegal to dump them in a wetland without a permit. So a cleanout container cannot double as a yard waste container here. One oddity worth knowing: the state says invasive plants should go in the regular trash rather than with yard waste or compost.
Electronics are banned too, and the list is long: televisions and monitors, computers, laptops, tablets, phones, speakers, printers, copiers, fax machines, projectors, keyboards, and old disc and tape players. Those all have to come out before loading.
Lead-acid batteries have been barred from New Hampshire landfills since 1991, which covers car, motorcycle, boat, and small-engine starter batteries. Rechargeable batteries, including the packs in power tools, e-bikes, and scooters, are banned as well. So are mercury-added items such as fluorescent tubes, compact fluorescent bulbs, thermostats, and old thermometers.
The usual exclusions apply on top of that: hazardous waste, liquids, paint, solvents, fuel, used oil, and asbestos. Portsmouth runs a Household Hazardous Waste Day for residents, with the next one set for 24 October 2026 from 8 a.m. to noon.
Holding something you cannot place? Check it with your account manager before it goes in the container.