The following document, 2011 NATA Errata and Emissions Update Sheet, provides a list of some of the known issues and updates that were not addressed during the review of the 2011 NATA. Reviewing this file will provide a better understanding of the results and help in determining how best to use them.

• 2011 NATA Errata and Emissions Update Sheet (PDF)(1 pg, 72 K)