# written permission from the local CBP port director — What must pass before the next step: mandated step order in regulated processes For written permission from the local CBP port director, process is Importer Security Filing (ISF); jurisdiction is United States (CBP); what must already be done is CBP expects the new ISF-10 to be completed electronically prior to seeking the written permission from the local CBP port director, recorded from its source on 2026-08-11. - **Step:** written permission from the local CBP port director _(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:** CBP expects the new ISF-10 to be completed electronically prior to seeking the written permission from the local CBP port director _(verified: appears in the quote below)_ ## What the source says > In terms of the business process, CBP expects the new ISF-10 to be completed electronically prior to seeking the written permission from the local CBP port director. Accordingly, the ISF-10 transaction number needs to be referenced in the written letter to the local port director as part of the request for the change from a shipment type requiring an ISF-5 to shipment type requiring an ISF-10. ## Source - https://www.cbp.gov/sites/default/files/documents/10_2faq_0.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/).