This document contains final regulations relating to agents authorized by the Secretary under section 3504 of the Internal Revenue Code to perform acts required of employers who are home care service recipients. The final regulations affect employers and their designated agents who pay wages for home care services, which are subject to taxes under the Federal Unemployment Tax Act. The final regulations also modify the existing regulations under section 3504 to be consistent with the organizational structure of the Internal Revenue Service (IRS), and to update the citation to the Internal Revenue Code of 1986.