Final answer:
Performance verification for an AV project should occur during the Program Evaluation Phase to assess if the project meets its objectives and performance criteria.
Step-by-step explanation:
Performance verification is an important aspect of an Audio/Video (AV) project and is ideally conducted during the Program Evaluation Phase. This phase follows the Preparatory Phase and Implementation and Learning Phase and precedes the Development of Lessons Learned. During this stage, the team reviews the project's success against its objectives and verifies that all aspects of the performance meet the predefined criteria.