; or (ii) either personally or through delegation no lower than the Deputy Attorney General, issues and signs a subpoena for such actions and such subpoena is supported by specific and articulable facts showing that there are reasonable grounds to believe that the information or testimony sought is relevant for conducting an investigation under this section. . D Portfolio Lending and Mortgage Access 516. Safe harbor for certain loans held on portfolio (a) In general Section 129C of the Truth in Lending Act ( 15 U.S.C. 1639c ) is amended by adding at the end the following: (j) Safe harbor for certain loans held on portfolio (1) Safe harbor for creditors that are depository institutions (A) In general A creditor that is a depository institution shall not be subject to suit for failure to comply with subsection (a), (c)(1), or (f)(2) of this section or section 129H with respect to a residential mortgage loan, and the banking regulators shall treat such loan as a qualified mortgage, if— (i) the creditor has, since the origination of the loan, held the loan on the balance sheet of the creditor