For records sought pursuant to subpoena, court order, summons, or regarding matters that are in litigation or likely to become the subject of litigation, the custodian must immediately advise appropriate Field Legal Counsel. Custodians should contact the General Counsel’s office if appropriate legal counsel is unknown. Records may only be released on advice of counsel. Postal Service regulations concerning providing records subject to subpoenas and legal proceedings are contained in 39 CFR 265.11-13.