# The ISF must be amended — What must pass before the next step: mandated step order in regulated processes

For The ISF must be amended, process is Importer Security Filing (ISF); jurisdiction is United States (CBP); deadline is before the goods enter the limits of the port of first arrival in the United States, recorded from its source on 2026-08-11.

- **Step:** The ISF must be amended _(verified: appears in the quote below)_
- **Process:** Importer Security Filing (ISF) _(our reading, not quoted from the source)_
- **Jurisdiction:** United States (CBP) _(our reading, not quoted from the source)_
- **Deadline:** before the goods enter the limits of the port of first arrival in the United States _(verified: appears in the quote below)_

## What the source says

> The ISF must be amended if there is a change or if more accurate information becomes available before the goods enter the limits of the port of first arrival in the United States.

## Source

- https://www.cbp.gov/sites/default/files/assets/documents/2018-Nov/Updated%20ISF%20FAQ%20FINAL%2011282018.pdf

Last verified: 2026-08-11. Review by: 2027-08-11.
Part of [What must pass before the next step: mandated step order in regulated processes](https://referencesource.org/prerequisite-sequencing-regulated-processes/).