 Under this program, treatment, storage and disposal facilities (TSDFs) must meet specific criteria in order to be permitted or be allowed interim status to continue operating while un-permitted.The Kettleman Hills Hazardous Waste Facility is governed under the RCRA and thus is subject to these permitting requirements.As a result, the Kettleman Hills Facility has been required to request a modification of their current permit by the California Department of Toxic Substance Control in order to expand the facility by the requested 14 acres to make room for the disposal of more waste.