Section 3600A of title 18 of the United States Code (“section 3600A”) requires the Government to preserve biological evidence that was secured in the investigation or prosecution of a Federal offense, if a defendant is under a sentence of imprisonment for such offense, subject to certain limitations and exceptions. The general purpose of this requirement is to preserve biological evidence for possible DNA testing under 18 U.S.C. § 3600. Subsection (e) of section 3600A requires the Attorney General to promulgate regulations to implement and enforce section 3600A, including appropriate disciplinary sanctions to ensure that employees comply with such regulations.