Certification that has been activated or suspended ________ be regained before evidential analyses can be administered.

The term "must" indicates a requirement or necessity. In the context of certification for the Intoxilyzer 9000, if a certification has been activated or suspended, it is mandatory that this certification be regained before any evidential analyses can take place. This reflects compliance with legal and operational standards necessary for the integrity of the testing process and ensures that only qualified personnel administer these analyses. The use of "must" reinforces the obligation and the seriousness of maintaining valid certification for enforcing standards in alcohol testing. This requirement is vital for ensuring that the results of the tests are reliable and admissible in legal situations.