Before a seller may enter into a contract for the sale of real property in the District, the seller shall inform each prospective buyer of the existence or removal of any UST system at the property, that the seller has knowledge of, on a disclosure form approved by the Department or in a letter incorporating all of the information required in the form, except as provided in §§ 5604.3 and 5604.4. The disclosure form is available on the Department's website at https://doee.dc.gov/page/ust-forms- guidance-and-public-documents.
The seller of real property is not required to perform a site assessment or other geological investigation to determine if there are USTs on the property, but shall:
Notice pursuant to § 5604.1 is not required for the sale of an individual condominium or cooperative unit.
A seller of a single family home shall use the disclosure form approved by the Department, which is available on the Department's website at https://doee.dc.gov/page/ust-forms-guidance-and-public-documents, or make the disclosure required by § 5604.1 in the sales contract if the purchaser signs an acknowledgement that the purchaser has read the disclosure prior to signing the contract.
D.C. Mun. Regs. r. 20-5604