This document provides an update on the credit risk retention requirements for CLOs following the Dodd-Frank Act, with the final rule being effective on December 24, 2016. It outlines that CLO managers, as sponsors, must retain at least 5% of the economic interest in the credit risk of securitized assets and describes permissible forms of risk retention including vertical and horizontal methods. Additional options for financing the risk retention obligation and the role of originators and lead arrangers are also discussed.