Question: What is the group's former name that now has an office with the Chief Actuary besides the Social Security Administration?

<P0-S0> In the United States, a Social Security number (SSN) is a nine-digit number issued to U.S. citizens, permanent residents, and temporary (working) residents under section 205(c)(2) of the Social Security Act, codified as . <P0-S1>  The number is issued to an individual by the Social Security Administration, an independent agency of the United States government. <P0-S2>  Although its primary purpose is to track individuals for Social Security purposes, the Social Security number has become a "de facto" national identification number for taxation and other purposes. <SEP> <P1-S0>  In Canada, the Office of the Chief Actuary works with the Canada Pension Plan and the Old Age Security Program. <P1-S1>  In the United States, both the Social Security Administration and the Centers for Medicare and Medicaid Services have an Office of the Chief Actuary that deals with Social Security and Medicare, respectively. <P1-S2> The Office of the Chief Actuary is a government agency that has responsibility for actuarial estimates regarding social welfare programs. <P1-S3>  A similar agency in the United Kingdom is called the Government Actuary's Department (GAD). <SEP> <P2-S0> Form W-2 (officially, the "Wage and Tax Statement") is an Internal Revenue Service (IRS) tax form used in the United States to report wages paid to employees and the taxes withheld from them. <P2-S1>  Employers must complete a Form W-2 for each employee to whom they pay a salary, wage, or other compensation as part of the employment relationship. <P2-S2>  An employer must mail out the Form W-2 to employees on or before January 31. <P2-S3>  This deadline gives these taxpayers about 2 months to prepare their returns before the April 15 income tax due date. <P2-S4>  The form is also used to report FICA taxes to the Social Security Administration. <P2-S5>  The Form W-2, along with Form W-3, generally must be filed by the employer with the Social Security Administration by the end of February. <P2-S6>  Relevant amounts on Form W-2 are reported by the Social Security Administration to the Internal Revenue Service. <P2-S7>  In territories, the W-2 is issued with a two letter code indicating which territory, such as W-2GU for Guam. <P2-S8>  If corrections are made, it can be done on a W-2c. <SEP> <P3-S0>  In addition to these programs, CMS has other responsibilities, including the administrative simplification standards from the Health Insurance Portability and Accountability Act of 1996 (HIPAA), quality standards in long-term care facilities (more commonly referred to as nursing homes) through its survey and certification process, clinical laboratory quality standards under the Clinical Laboratory Improvement Amendments, and oversight of HealthCare.gov. <P3-S1> The Centers for Medicare & Medicaid Services (CMS), previously known as the Health Care Financing Administration (HCFA), is a federal agency within the United States Department of Health and Human Services (HHS) that administers the Medicare program and works in partnership with state governments to administer Medicaid, the State Children's Health Insurance Program (SCHIP), and health insurance portability standards.