### Question
What does sponsor mean?


### Answer
**Sponsor** has the following meaning in *42 U.S.C. § 1395w*:

> a plan sponsor, as defined in section 1002(16)(B) of title 29, in relation to a group health plan, except that, in the case of a plan maintained jointly by one employer and an employee organization and with respect to which the employer is the primary source of financing, such term means such employer

#### Citation:
  - *42 U.S.C. § 1395w*
  - Heading: **CHAPTER 7-SOCIAL SECURITY > SUBCHAPTER XVIII-HEALTH INSURANCE FOR AGED AND DISABLED > Part D-Voluntary Prescription Drug Benefit Program > subpart 3-application to medicare advantage program and treatment of employer-sponsored programs and other prescription drug plans**

