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Last Updated: Monday, May 5, 2008 2:49 PM

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CO Protocol

Download the CO Protocol

The Microsoft Word™ files are searchable and should be usable with screen readers. If Microsoft Word or compatible word processing software is not available, viewer software may be obtained from Microsoft Links exit the Caltrans web site - privacy and other policies may differ, or the "Wordpad" accessory that is included with most versions of Windows™ may be used.

DOWNLOAD (0.5 MB ZIP archive of Microsoft Word 6 files)

The PDF file is useful mainly for printing. It includes scanned images of a paper copy of the report, and copies of most approval correspondence. The correspondence (Appendix D) in the original document is not included with the MS Word™ files.

DOWNLOAD (5.2 MB) PDF File

What Is the CO Protocol?

The Transportation Project-Level Carbon Monoxide Protocol (CO Protocol), University of California Davis, December 1997, deals with project-level air quality analysis needed for federal conformity determinations, NEPA, and CEQA. The Protocol is the standard method for project-level CO analysis by Caltrans, replacing the Air Quality Technical Analysis Notes. CALINE4 use is supported only as described in the Protocol. Appendix B provides guidance for use of the CALINE4 modeling program in cases where the screening procedures contained in the CO Protocol are not sufficient.

Do not use Appendix A of the CO Protocol. Appendix A was developed using EMFAC 7F. If, when following the Protocol, quantitative screening using Appendix A is indicated, the analyst should instead perform modeling using CALINE4 as outlined in Appendix B.

Other Information:

A printed version of the report, with EPA correspondence included, is available through the UC Davis Institute of Transportation Studies Links exit the Caltrans web site - privacy and other policies may differ; ask for report number UCD-ITS-RR-97-21.

CO-related materials can also be obtained from the UCD-Caltrans Air Quality Project web pageLinks exit the Caltrans web site - privacy and other policies may differ.

Notes

All products except "PDF" documents are compressed archive files. Download the file(s), using appropriate procedures for your browser, to a working directory. Then use an "unzip" utility (such as Links exit the Caltrans web site - privacy and other policies may differ Winzip or PKZip) to unpack the archive. After unpacking, you may need to move the resulting files to another directory before using; consult the README.TXT file in the archive for more information.

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