The web-based Interactive Form, Application for Simplified Measurement (CG-5397), used to calculate tonnages is replaced with an updated Adobe Acrobat Forms (.pdf) version, which also calculates tonnages. The updated Adobe form is available through both the NVDC web site and the Coast Guard Homeport web site.
NOTE: For users that currently have the latest version of Adobe (version 9.1 and above) installed in their operating system, click here to download Form CG-5397.
The calculated tonnages will be displayed in the upper right hand of the form, as indicated on the sample form on the left, when the necessary information required to perform the calculation has been entered. If the tonnages don't display, make sure you've hit the Enter key after typing the last entry.
Use the Application for Simplified Measurement (CG-5397) form to apply to the National Vessel Documentation Center (NVDC) for tonnage assignment under the simplified measurement system. You may complete the form electronically, and then print it for signature, or you may print the blank form and complete it entirely by hand. Once completed, send the signed form to the NVDC by mail, fax, or as a .pdf attachment to an email.
If you need more information on tonnage measurement under the simplified measurement system, and/or require assistance in completing this form, please visit the Marine Safety Center's Homeport site, and search on "Tonnage Measurement".