### Question
Can you define what investment-grade rating means?


### Answer
**Investment-grade rating** is defined as the following in *45 U.S.C. § 821*:

> a rating of BBB minus, Baa 3, bbb minus, BBB(low), or higher assigned by a rating agency

#### Citation:
  - *45 U.S.C. § 821*
  - Heading: **CHAPTER 17-RAILROAD REVITALIZATION AND REGULATORY REFORM > SUBCHAPTER II-RAILROAD REHABILITATION AND IMPROVEMENT FINANCING**

