Figure E-1. Steps for Using MOVES in Project-Level CO Analysis  however, CO hot-spot modeling based on EPA's standard CO modeling guidance 98  is acceptable  if EMFAC is used to generate emission factors instead of MOVES models.  For further guidance on conducting a CO hot -spot analysis and on the appropriate inputs MOVES and EMFAC to generate the emission factors necessary to complete the analysis , refer  to EPA’s  Using MOVES in Project-Level Carbon Monoxide Analyses 99 , and the California  CO  Protocol  mentioned previously.  98 EPA,  Guideline for Modeling Carbon Monoxide from Roadway Intersection , November 1992 [EPA-454/R-92- 005], http://www.epa.gov/scram001/guidance/guide/coguide.pdf.  99 EPA,  Using MOVES in Project-Level Carbon Monoxide Analyses , December 2010 [EPA-420-B-10-041],  http://www.epa.gov/oms/stateresources/transconf/policy/420b10041.pdf.  93$_{ }$ APPENDIX E$_{ }$