Line 2 of the STO structure contains which element?

• A. Location
• B. Line 1
• C. Line 3
• D. Effective Date Time Group

Answer: (A)

The line order in an STO is designed to present the essential details in a way that’s quick to read and act on. The second line being the location makes sense because once you know where the operation is set to occur, you can immediately place the rest of the information—who is issuing the order, what needs to happen, and when it should take effect—into the proper geographic and operational context. Locating the action early helps responders and planners correlate the order with maps, assets, and terrain.

The other elements typically appear on other lines or in dedicated fields: the first line generally sets the issuing unit or command context, the third line covers subsequent details or instructions, and the Effective Date Time Group provides the scheduling timestamp rather than the physical location. Placing location on the second line supports quick situational awareness and reduces the chance of misinterpreting where the action applies.