All duplicate tags are filtered out. Erroneous tags are sent back to the sender and forwarded through e-mail to the recipient with proper warnings. As good as the OATI tagging system is for tag creation by power marketers, it is even better for the control area operators. There is no work involved in getting the tags. The tag summaries are refreshed in real-time.
Any new tag is instantaneously visible with no human effort required.
While the NERC tagging does not allow actions on tags, the OATI system does. You can approve, deny, curtail, terminate, withdraw or supersede a tag with a click of a button. Once you have taken an action on a tag, there is no need for you to do anything to inform other companies. The system does it. The OATI system offers high security, the same one they provide for their trading system, in which they have to protect their customers' confidential financial data.