[Marine One]

Inspection = Implies 100% of the population.
Audit = Random sampling of the population.

Every car should go through a basic safety inspection prior to making any passes.

If resources are limited, which NHRA claims they are, a technical audit should be incorporated into the safety inspections.

In such a scenario, as cars are being inspected for safety, randomly selected cars would also be audited for visual conformance to general technical guidelines / policies. I say visual and general because this is not the time or place for tearing into engine, etc.

Just my $0.02