Pre-trip inspections must be completed more often than every 24 hours.
MVI (Motor Vehicle Inspection) decals must be checked as part of the CDL pre trip inspection to ensure these are valid.
"Tips for Avoiding Tire Violations" is the handout (2016) International Roadcheck. See it interpreted here!
For the purposes of the CDL pre-trip inspection, tires are a major component. Learn how to inspect these.