How to Dispose of Fluorescent Light Ballasts Safely

How to dispose of fluorescent light ballasts depends mostly on one thing: how old the ballast is. Newer ballasts are just metal and electronics and can go to a scrap yard or an electronics drop-off. Older magnetic ballasts, especially ones made before 1979, may hold a small capacitor filled with PCBs, a toxic chemical that is now banned. Those need more care, and a ballast that is leaking needs real caution. Most people run into this when they swap old fluorescent fixtures for LED, so here is how to sort what you pulled out.

What a ballast is and why it matters

A ballast is the box inside a fluorescent fixture that starts the tube and controls the current. Older ones are magnetic: a heavy steel case with copper or aluminum windings and, in many cases, a small capacitor, often potted in a tar-like filler. Newer ones are electronic, lighter, and built around a circuit board. PCBs, or polychlorinated biphenyls, were used in capacitors because they handle heat well, but they are toxic and break down very slowly. U.S. production of PCBs ended in 1979, which is why the date on a ballast matters so much.

Check the label first

• “No PCBs” printed on the label. Federal rules required ballasts made without PCBs from 1978 to 1998 to say so. A ballast with that statement can be treated as PCB-free.
• Marked “electronic.” Electronic ballasts do not contain PCBs.
• Made after 1998. Later ballasts are PCB-free even if they lack the label, since PCBs were long out of production by then.
• No label, no date, or older than 1979. Assume it contains PCBs. EPA guidance says to treat an unmarked older ballast that way unless you know otherwise.

Old fixtures were sometimes reused or rewired, so a building built after 1979 can still have an older ballast inside. Read the label on each one instead of going by the age of the house.

Remove it safely

1. Turn the circuit off at the breaker, not just the wall switch, and confirm the fixture is dead before you touch the wiring.
2. Take the tubes out first and set them aside where they will not get broken.
3. Look at the ballast before you handle it. If you see an oily film, a black tar-like drip, or stains around it, stop and treat it as leaking (see below).
4. Wear nitrile gloves, unscrew the ballast, and cut or release the wires.
5. Keep it intact. Do not open the case, crush it, or knock the capacitor loose.
6. Put each old or unlabeled ballast in a sealed plastic bag, then into a sturdy box, and keep it dry until you drop it off.

Where each kind of ballast goes

• Electronic and “No PCBs” ballasts. These are ordinary metal and electronics. Many scrap yards take magnetic ballasts for their steel and copper, usually at a low price and only when they are clearly labeled PCB-free, so call first. Electronic ballasts can also go to an electronics recycling drop-off. Federal rules do not stop a homeowner from putting a non-PCB ballast in the trash, but recycling keeps the metal in use, and some local rules are stricter.
• Intact older ballasts that may contain PCBs, from your own home. Federal rules allow a homeowner to throw out an intact, non-leaking PCB ballast removed during routine maintenance at a house. Even so, the better choice is your county household hazardous waste program, and many of them take ballasts. Some states and local programs also go further than federal law, so call before you bag one for the curb.
• Specialty ballast recyclers. Some companies recycle ballasts by mail or by drop-off, removing the capacitor and recovering the metal. These are worth a look if you have a box of them.

If a scrap yard is the plan, keep ballasts separate from the rest of your metal. Sorting remodel scrap metal covers how yards like loads split up.

If a ballast is leaking

A leak looks like an oily or tarry residue on the case, the fixture, or the ceiling under it, and a burned-out ballast may have smoked or left a strong smell. The household trash exemption does not cover a leaking PCB ballast. Do not wipe it up with a rag and toss it. Keep people and pets away from the spot, leave the fixture where it is if it is still in place, and call your state environmental agency or local household hazardous waste program for direction. A larger spill, or one in a school or workplace, is a job for a contractor trained in PCB cleanup, and EPA requires leaking PCB ballasts and the waste from cleaning them up to go to an approved disposal facility.

Businesses and big retrofit jobs

The trash allowance is only for homeowners doing routine maintenance. Businesses, schools, landlords with commercial buildings, and contractors pulling ballasts from a large job are held to the federal PCB rules for storage, shipping, and disposal. In practice that means separating PCB and non-PCB ballasts, packing them in approved containers, and using a licensed hauler or ballast recycler who provides paperwork showing where they went. If you are hiring an electrician for an LED retrofit, ask in writing how the old ballasts will be handled.

Don’t forget the tubes

The fluorescent tubes that came out of the same fixture contain a small amount of mercury and should be recycled, not thrown out. Keep them whole and take them to a retailer take-back bin or a household hazardous waste site. Recycling fluorescent tubes and our fluorescent bulb recycling guide explain where they go.

Fluorescent ballast disposal FAQ

Do fluorescent light ballasts contain PCBs?

Only some older magnetic ones. Ballasts made before 1979 may have PCBs in a small capacitor or the filler around it. Ballasts labeled No PCBs, electronic ballasts, and ballasts made after 1998 are PCB-free.

Can I throw a fluorescent ballast in the trash?

A PCB-free ballast is usually allowed in household trash, though recycling is better. Federal rules also let a homeowner trash an intact, non-leaking PCB ballast from routine maintenance, but state or local rules may be stricter, so a hazardous waste drop-off is the safer choice.

What does a leaking ballast look like?

Look for an oily film or a black, tar-like residue on the case, the fixture, or the surface below it. A burned-out ballast may also have smoked or left a strong odor. Do not handle it with bare hands or throw it out.

Are old ballasts worth anything for scrap?

Magnetic ballasts contain steel and copper or aluminum, so some scrap yards take them at a low price. Many yards accept only ballasts clearly marked No PCBs or electronic, so call before you haul them.

What should a business do with old ballasts?

The household trash allowance does not apply to businesses or large jobs. Separate PCB and non-PCB ballasts, store them dry and intact, and use a licensed hauler or ballast recycler that documents where they go.

The bottom line

How to dispose of fluorescent light ballasts comes down to the label. Electronic and “No PCBs” ballasts can go to scrap metal or electronics recycling. Old or unlabeled magnetic ballasts should stay intact and go to a household hazardous waste program or a ballast recycler, even where the trash is technically allowed. A leaking ballast is never trash, so leave it alone and call your state environmental agency or HHW program.