10-Codes Still Allowed
From Firehouse.com, it looks like first responders will still be able to use 10-codes and still be in compliance with NIMS.
The Department of Homeland Security Secretary Michael Chertoff has announced today that it is no longer necessary for first responders to discontinue using the 10-Code system of verbal communication in order to come into compliance with the National Incident Management System (NIMS).
I think this is a mistake. According to the article, this is the reason for the change in direction:
...Chertoff said there was a strong response from the law enforcement community against this proposal. “We had a discussion about it. As a result, I have decided that NIMS compliance will not include the requirement of the abolition of 10-Codes in everyday law enforcement communications”
This may be a case where law enforcement has a requirement for 10-codes, but I don't think the fire service has the same requirements.

