### Question
What is the definition of insurer?


### Answer
The definition of **insurer** is as follows in *29 U.S.C. § 1104*:

> an insurance company, insurance service, or insurance organization, including affiliates of such companies

#### Citation:
  - *29 U.S.C. § 1104*
  - Heading: **CHAPTER 18-EMPLOYEE RETIREMENT INCOME SECURITY PROGRAM > SUBCHAPTER I-PROTECTION OF EMPLOYEE BENEFIT RIGHTS > Subtitle B-Regulatory Provisions > part 4-fiduciary responsibility**

