Enhanced testing procedures?

In order to renew my vehicle's registration it must pass an emissions test. Waiting in line with the engine running I pass the time by reading whatever is posted:

Enhanced testing procedure are a direct result of federal law.

Enhanced? Where have I heard that word used by the federal government before? Oh yeah!

Enhanced interrogation techniques

Enhanced testing procedure? Information, warning, threat? I don't know. The only other, possibly related, bit of information was that IF your vehicle doesn't pass you are instructed to park and go to the office for 'help.'

Vehicle passed. Whew ...