NHRA released an addendum to the rule book applicable to tech inspections.
http://www.nhra.net/2021/nhraracer/r...n_Rulebook.pdf
Although not detailed and/or specific, one noteworthy statement is that under the clauses of the new addendum, they have the authority to look at your electronic data in and outside your car. My belief is that NHRA can request that you provide them your Racepak or similar recording system data and in the case of EFI, your software/tune programs.
"By participating in the event, the participant understands and agrees that NHRA and
event officials at any NHRA Member Track may at any time inspect, seal for inspection,
tear down, and/or conduct testing by any means or method they deem appropriate on a
vehicle or any part thereof, including PPE and components that are not affixed to or
have been removed from the vehicle and computer or electronic devices and data,
including without limitation data preserved away or apart from the vehicle."