40 CFR § 262.35
Liquids in landfills prohibition
June 9, 2020
The placement of bulk or non-containerized liquid hazardous waste or hazardous waste containing free liquids (whether or not sorbents have been added) in any landfill is prohibited. Prior to disposal in a hazardous waste landfill, liquids must meet additional requirements as specified in §§264.314 and 265.314.
[81 FR 85818, Nov. 28, 2016]