### Question
How is the term plan sponsor defined?


### Answer
The term **plan sponsor** is defined in *26 U.S.C. § 4971* as the following:

> given such term by section 432(i)(9).[2](#4971_2_target)


#### (5) Waiver


In the case of a failure described in paragraph (2) or (3) which is due to reasonable cause and not to willful neglect, the Secretary may waive part or all of the tax imposed by this subsection. 

#### Citation:
  - *26 U.S.C. § 4971*
  - Heading: **Subtitle D-Miscellaneous Excise Taxes > CHAPTER 43-QUALIFIED PENSION, ETC., PLANS**

