This document provides a guide for Navy Reserve sailors on using the Navy Reserve Order Writing System (NROWS) to apply for, modify, cancel, and track orders. It outlines 14 steps for submitting an initial order application, including entering personnel and contact information, duty dates and locations, travel details, entitlements, and comments. Sections also provide guidance for pulling back an application before approval, modifying approved orders, and cancelling orders. The guide specifies the limited circumstances under which orders can be modified or cancelled retroactively.