This document was referenced on the the Tax Book forum as an excellent resource, published by the National Institute of Standards and Technology (NIST) of the U.S. Dept of Commerce and is available at https://doi.org/10.6028/NIST.IR.7621r1 as a 54-page pdf with a sample template in the appendix.
I usually don't share things from Drake, but this appears in my google search and appears to not be copyrighted. It is a template available to anyone searching the internet, and this link will launch a 20-page pdf directly from Drake's knowledge base: https://kb.drakesoftware.com/Attachment330.aspx .
Both of the links above will launch the pdfs directly, but if you are hesitant to click the links but are comfortable enough if I upload the pdfs here I can do that. Please know that I've clicked both links tonight on both my main desktop and my tablet, neither of which set off alarm bells with any of the three AV software products on either device.