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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. 

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