According to generally accepted guidelines, Infant CPR is administered to any victim under the age of 12 months.
Infants, just as children, have a much better chance of survival if CPR is performed immediately. If you are alone with the infant, do not dial 9-1-1 until after you have made an attempt to resuscitate the victim.
Check the infant for responsiveness by patting his feet and gently tapping his chest or shoulders. If he does not react (stirring, crying, etc.), immediately check his airway