"We now look forward to the final audit results."
At US Airways, "trend analysis of audit results could be improved," the agency found.
However, no audit results have been published to date.
The audit results are likely to renew calls by environmental groups for tighter regulations.
Reporters who subsequently asked Nielsen to release the audit results were told by the company that it would adhere to the council's policy of confidentiality.
There is no evidence in the available documents that audit results were used to punish troopers.
Auditors will need to exercise professional judgment in assessing the significance of audit results or findings.
Those annual audit results are posted on a public website and get scrutinized and often challenged by interested parties.
It also ensures the audit results are available to Congress.
The audit results are submitted to the licensing relevant body for the station's territory.