Assembling the AOS packet is not the same as filling out your forms or gathering your documents. Those steps come first. This stage is about how the packet is ordered, grouped, labeled, and checked before it goes out. USCIS receives a physical submission. If the packet is unclear or improperly assembled, the problem shows up at intake. This guide covers assembly method: how to organize the file so it can be reviewed from top to bottom without friction.   What Packet Assembly