The Postal Service is reminding employees that they must properly dispose of used oil.
This also applies to waste items mixed with oil, such as paper towels or cloth rags.
Used oil must be stored in closed containers that are in good condition and clearly labeled. They must have secondary containment to further protect against leaks and spills.
The containers must be stored indoors or under a storm-resistant shelter.
Never dispose of used oil in the trash or pour it down a drain. Send it off-site for recycling using Safety-Kleen, the national regulated waste management supplier available on eBuy Plus.
Some states — including California, Massachusetts and New Hampshire — have stricter requirements.
The Used Oil Environmental Compliance Bulletin has more or contact your USPS environmental specialist.


