Hazardous Materials

Service Temporarily Suspended        

Until further notice, the city cannot accept special collections of household hazardous waste, due to the temporary closure of the county's household hazardous waste drop-off.

Rockville provides unlimited hazardous waste collection by appointment only. Alternatively, you can drop off household hazardous waste at the Montgomery County Transfer Station.

Household products, such as oil-based paints, cleaners, oils, batteries and pesticides, contain corrosive, toxic, ignitable or reactive ingredients that are considered household hazardous waste. Rockville offers a convenient and safe collection service to help you safely dispose of these products.

Tips for Collection:

  • Place liquids and chemicals in original containers or in clearly marked containers. All containers should be in a box labeled "HAZMAT".
  • Place materials in a secure area, such as the top of your driveway, to prevent spills.
  • No gasoline, gas-oil mixes, flammable liquids, unwanted fuels (these items should be taken directly to the Montgomery County Transfer Station) 
 Still have questions? Contact: 

Recycling and Refuse

TDD: 240-314-8137
Monday - Thursday
7 a.m. - 5:00 p.m.
  1. Accepted Hazardous Waste
  2. Not Accepted

Liquids and Chemicals

  • Acids/caustics (cleaning and pool chemicals)
  • Aerosol cans with fluid 
  • Motor oil, antifreeze, brake fluid (limited to 4 jugs)
  • Pesticides, poisons, insecticides
  • Oil-based paint
  • Used cooking and vegetable oil (limited to 5 gallons. To allow oil to be recycled, please do not mix with any other fluids and place in a container with a tight-fitting lid; metal or plastic containers preferred)


  • Car batteries (limited to 4 per collection)
  • Rechargeable batteries Includes lithium, lithium-ion, nickel-cadmium, nickel metal hydride, small sealed lead acid, mercuric oxide, silver oxide and tool batteries (Place each battery individually in plastic bag or tape ends with masking tape or non-metallic tape)
  • Compact fluorescent bulbs