This document contains final and temporary regulations relating to certified professional employer organizations (CPEOs). The Stephen Beck, Jr., Achieving a Better Life Experience Act of 2014 requires the IRS to establish a voluntary certification program for professional employer organizations. These final and temporary regulations contain the requirements a person must satisfy in order to become and remain a CPEO. The final and temporary regulations will affect persons that apply to be CPEOs and are certified by the IRS as meeting the applicable requirements. The text of these final and temporary regulations also serves, in part, as the text of the proposed regulations (REG-127561-15) set forth in the notice of proposed rulemaking on this subject in the Proposed Rules section of this issue of the Federal Register.