“Usually applies to” lists what a typical moving company has in scope for each requirement; your own scope decides. See what's in scope.
“May wait on a POA&M” applies only if your overall score is at least 88 of 110, and the gap must then be closed within 180 days. See how Level 2 works.
3.7.1 Keep systems maintained
Keep computers, network equipment and software maintained, with updates and repairs done on a schedule.
Usually applies to: Computers, phones, network equipment, printers and copiers, and software in scope.
3 points if not met Cannot wait on a POA&M
Official wording: “Perform maintenance on organizational systems.”
3.7.2 Control maintenance tools and people
Control the tools and the people that do maintenance: who your IT helper is, which remote tools they use and what they can reach.
Usually applies to: Your IT company or technician, and the tools they use: remote-support software, diagnostic tools and administrator accounts.
5 points if not met Cannot wait on a POA&M
Official wording: “Provide controls on the tools, techniques, mechanisms, and personnel used to conduct system maintenance.”
3.7.3 Wipe devices before outside repair
Before a computer or phone goes out for repair, securely wipe any DoD shipment information from it, or take out the drive.
Usually applies to: Computers, phones, tablets and copiers sent out for repair or warranty service.
1 point if not met May wait on a POA&M
Official wording: “Ensure equipment removed for off-site maintenance is sanitized of any CUI.”
3.7.4 Check a technician's drives for malware
Scan any USB drive or disc a technician brings before it is used on your systems.
Usually applies to: USB drives, discs and diagnostic tools a technician brings in.
3 points if not met Cannot wait on a POA&M
Official wording: “Check media containing diagnostic and test programs for malicious code before the media are used in organizational systems.”
3.7.5 A second step for remote IT support
Remote maintenance over the internet requires multifactor sign-in, and the connection is closed when the work is done.
Usually applies to: Remote support sessions by your IT company or a vendor's support desk.
5 points if not met Cannot wait on a POA&M
Official wording: “Require multifactor authentication to establish nonlocal maintenance sessions via external network connections and terminate such connections when nonlocal maintenance is complete.”
3.7.6 Supervise outside technicians
A technician who has not been approved for access, such as a copier repair person, is supervised while working on your systems.
Usually applies to: Copier, phone-system and other repair technicians who work in your office without approved access.
1 point if not met May wait on a POA&M
Official wording: “Supervise the maintenance activities of maintenance personnel without required access authorization.”
Sources: official wording, NIST SP 800-171 Rev 2; points, 32 CFR 170.24; plans of action, 32 CFR 170.21. The plain-English explanations are ours.