This guidance updates Training and Employment Guidance Letter (TEGL) 10-16, Change 2, published September 15, 2022, and developed jointly by the U.S. Departments of Labor (DOL) and Education (ED) (the Departments). Within ED, the Office of Career, Technical, and Adult Education (OCTAE) will update Program Memorandum (PM) 17-2, and the Rehabilitation Services Administration (RSA) will update Technical Assistance Circular (TAC) 17-01 to be consistent with the changes reflected in this memorandum. With this issuance, the Departments update the guidance to reflect changes made in the "Workforce Innovation and Opportunity Act Effectiveness in Serving Employers Performance Indicator" final rule (89 FR 13814 (Feb. 23, 2024)) (Final Rule). This final rule took effect March 25, 2024, and defined the Effectiveness in Serving Employers primary indicator of performance, as required by Workforce Innovation and Opportunity Act (WIOA) section 116(b)(2), as "Retention with the Same Employer." The final rule requires States to report the indicator as a shared indicator across the six core programs. This guidance also incorporates other changes to improve clarity.