---
kind: "section"
citation: "45 C.F.R. § 641.19"
title: "45"
number: "641.19"
heading: "Modification of environmental documents."
url: "https://uscodex.org/cfr/45/641.19"
---

# §641.19. Modification of environmental documents.


The responsible official should revise or supplement an environmental document if there is a change in a proposed action that may have more than a minor or transitory effect on the antarctic environment, or if there are new circumstances or information that indicate the action may have impacts not anticipated in the original environmental document.


## Notes

### Authority

Authority: E.O. 12114, 44 FR 1957, 3 CFR 1979 Comp., p. 356.

### Source

Source: 57 FR 40339, Sept. 3, 1992, unless otherwise noted.