---
kind: "section"
citation: "40 C.F.R. § 27.30"
title: "40"
number: "27.30"
heading: "The hearing and burden of proof."
url: "https://uscodex.org/cfr/40/27.30"
---

# §27.30. The hearing and burden of proof.

- (a) The presiding officer shall conduct a hearing on the record in order to determine whether the defendant is liable for a civil penalty or assessment under [§ 27.3](/cfr/40/27.3.md) and, if so, the appropriate amount of any such civil penalty or assessment considering any aggravating or mitigating factors.
- (b) The Authority shall prove defendant's liability and any aggravating factors by a preponderance of the evidence.
- (c) The defendant shall prove any affirmative defenses and any mitigating factors by a preponderance of the evidence.
- (d) The hearing shall be open to the public unless otherwise ordered by the presiding officer for good cause shown.

## Notes

### Authority

Authority: 31 U.S.C. 3801-3812; Pub. L. 101-410, 104 Stat. 890, 28 U.S.C. 2461 note; Pub. L. 104-134, 110 Stat. 1321, 31 U.S.C. 3701 note.

### Source

Source: 53 FR 15182, Apr. 27, 1988, unless otherwise noted.