# FT - Flexible Timing — What must pass before the next step: mandated step order in regulated processes

For FT - Flexible Timing, process is Importer Security Filing (ISF); jurisdiction is United States (CBP); what must already be done is The ISF must be updated as soon as better information becomes available; deadline is no later than 24 hours prior to arrival, recorded from its source on 2026-08-11.

- **Step:** FT - Flexible Timing _(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)_
- **What must already be done:** The ISF must be updated as soon as better information becomes available _(verified: appears in the quote below)_
- **Deadline:** no later than 24 hours prior to arrival _(verified: appears in the quote below)_

## What the source says

> FT - Flexible Timing – The CS (consolidator name/address) and/or the LG (stuffing location) has not been provided. The ISF must be updated as soon as better information becomes available, but in any event no later than 24 hours prior to arrival. If FT is used, CBP will expect to receive a timely update.

## 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/).