# Step 2 — What must pass before the next step: mandated step order in regulated processes For Step 2, process is Appendix D stand-alone single transaction ISF bond submission; jurisdiction is United States (CBP); order is 2; what must already be done is After CBP has received and accepted the ISF, recorded from its source on 2026-08-11. - **Step:** Step 2 _(verified: appears in the quote below)_ - **Process:** Appendix D stand-alone single transaction ISF bond submission _(our reading, not quoted from the source)_ - **Jurisdiction:** United States (CBP) _(our reading, not quoted from the source)_ - **Order:** 2 _(verified: appears in the quote below)_ - **What must already be done:** After CBP has received and accepted the ISF _(verified: appears in the quote below)_ ## What the source says > Step 2: After CBP has received and accepted the ISF, the ISF filer will receive a unique ISF transaction number from CBP. The ISF Importer, or its agent, must affix a legible copy of the ISF transaction number (e.g., typed and of a font size 12) onto the Appendix D stand-alone ISF bond. ## 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/).