Can one evidence item support more than one practice?

Yes. Add it once and link it to every practice it applies to, so you avoid duplicate uploads.

Should I upload CUI as evidence?

No. Do not put CUI in CMMCTrack. Use it to organize your assessment, and keep CUI in your approved environment.

CMMC Evidence Library Setup and Usage Guide

body{font-family:'Inter',sans-serif;max-width:800px;margin:40px auto;padding:0 20px;line-height:1.6}Evidence library basicsLearn how to add evidence items, link them to the CMMC practices they support, reuse them without duplicate uploads, and keep actual CUI out of CMMCTrack.Supports Level 1 (15 practices, FAR 52.204-21) and Level 2 (110 practices, NIST SP 800-171).Please enable JavaScript to use CMMCTrack.