For a test to be valid, what must be signed by the operator?

For a test to be valid, the final test result must be signed by the operator. This signature serves as an essential part of verifying that the individual conducting the test has confirmed the accuracy and integrity of the test results. By signing the final test result, the operator assumes responsibility for the testing process and indicates that all procedures were followed as required. This documentation is crucial in ensuring that the results can be trusted and are admissible in any legal proceedings.

While other aspects of the testing process may require attention or may involve documentation, the final test result is particularly significant because it encapsulates the outcome of the entire testing process and serves as a formal record that can be referenced later on. Having the operator's signature on this document adds a layer of accountability, ensuring that the results are tied to a qualified individual who has performed the test properly. This practice upholds the integrity of the testing protocol as governed by applicable laws and regulations.