39 CFR 230.42: Disposition of property declared abandoned where title vests in the government.

Property declared abandoned, including cash and proceeds from the sale of property subject to this part, may be shared with federal, state, or local law enforcement agencies. Abandoned property may also be destroyed, sold, or placed into official use. However, before abandoned property can be shared with another agency, sold, or placed into official use, the Executive Special Agent in Charge must confer with the Office of Inspector General, Office of General Counsel. Abandoned property that is not shared with other agencies shall be converted into a monetary instrument and deposited into the Postal Service Fund established by 39 U.S.C. 2003. The Executive Special Agent in Charge of Headquarters Operations, or a designee, in consultation with the Office of General Counsel, shall determine which accounts within the Postal Service Fund will receive the proceeds of abandoned property.