The CTW can be accessed directly within the Defense Travel System on the "Pre-Audit Trip" or "Digital Signature" screens.
You can typically access or download a fillable version of the worksheet through official government portals:
Required for trips exceeding 400 miles one-way when using a non-standard mode (like a POV).
Other agencies like the USDA or Coast Guard have their own versions, such as the USDA Constructed Cost Worksheet or the USCG Constructive GTR Cost Worksheet . Step-by-Step Instructions: Constructed Travel - Defense Travel Management Office
According to the latest Joint Travel Regulations (JTR) updates (as of January 31, 2025):