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Cardio-pulmonary resuscitation is the critical skill needed by emergency medical personnel; so they must be aware of the recent changes in CPR. This study has been done to determine the awareness level of emergency medical technicians in Kermanshah of the 2010 guidelines for CPR in 2012. In this descriptive cross-sectional study, emergency medical technicians [159 ones] were studied using census sampling in Kermanshah's emergency base in 2012. By using a self-administrated questionnaire, data were collected with face, content and reliability [r=%74]; also were analyzed by STATA-11 software, tests of Kruskal-Wallis, Mann-Whitney U and Spearman [P<0.05]. According to the findings, the level of awareness in emergency medical personnel was as follows:%19.5 excellent,%78.6 good and%1.9 moderate. Also, there was no statistically significant relationship between level of awareness and gender, work experience, field of study, previous workplace, passing advanced CPR training and observing CPR. However, level of awareness was higher in emergency technicians who had experience of passing and performing CPR training independent. In some areas, level of awareness was influenced by workplace and observing CPR [P<0.001]. It is recommended to teach CPR based on the 2010 guidelines for emergency technicians with the emphasis on Laryngeal Mask Airway [LMA], combitube intubations, reasons of termination and undoing of CPR, intraosseous injections [IO] and induced-hypothermia