By Michael Lampert, Christine Moundas and Minal Caron (February 9, 2018, 1:07 PM EST) -- On Jan. 25, 2018, the U.S. associate attorney general issued a memorandum directing civil litigators in the U.S. Department of Justice to limit their use of governmental agency guidance documents in affirmative civil enforcement (ACE) matters. Specifically, the memorandum directs DOJ litigators not to use guidance documents issued by governmental agencies for purposes of determining the merit of ACE matters, or as a basis for proving violations of applicable law in those matters. This article describes key considerations with respect to the memorandum, and summarizes the issues that will need to be monitored over time in order to understand the memorandum's ultimate impact on civil health care enforcement matters....