What must an inspector do if emissions test results are out of acceptable range?

When emissions test results fall outside the acceptable range, the inspector's responsibility includes consulting with the customer about necessary repairs. This option is correct as it emphasizes the importance of customer communication and educating the vehicle owner about the issues detected during the emissions test. The inspector should inform the customer of the specific failures, potential causes, and recommended repairs to bring the vehicle back into compliance with emissions standards.

Addressing the other options, automatically passing the vehicle would not ensure that it meets environmental regulations, undermining the purpose of the emissions testing program. Rejecting the vehicle and issuing a retest without providing information to the customer does not facilitate resolution of the emissions issue, nor does it guide the owner on how to remedy the problem. Finally, requesting an additional fee for further tests without first discussing the results and potential repairs would not support the objective of helping the vehicle owner address compliance issues and can lead to customer dissatisfaction.