---
kind: "section"
citation: "33 C.F.R. § 333.35"
title: "33"
number: "333.35"
heading: "Integrity and completeness of information."
url: "https://uscodex.org/cfr/33/333.35"
---

# §333.35. Integrity and completeness of information.

- (a) The District Engineer will not undertake new scientific and technical research to inform their analyses unless that is essential to a reasoned choice among alternatives and the overall costs and time frame of such undertaking are not unreasonable. Rather, the District Engineer will make use of reliable existing data and resources.
- (b) When the District Engineer is evaluating an action's reasonably foreseeable effects on the human environment, and there is incomplete or unavailable information that cannot be obtained at a reasonable cost or the means to obtain it are unknown, the District Engineer will make clear in the relevant environmental document that such information is lacking.

## Notes

### Authority

Authority: 5 U.S.C. 301; 33 U.S.C. 401 et seq.; 33 U.S.C. 1344; 33 U.S.C. 1413; 42 U.S.C. 4321 et seq.

### Source

Source: 90 FR 29472, July 3, 2025, unless otherwise noted.