18 years of age for compulsory military service; 16 years of age for volunteers; 17 years of age for Law Enforcement Forces; 15 years of age for Basij Forces (Popular Mobilization Army); conscript military service obligation is 18 months; women exempt from military service.
18-27 years of age for compulsory or voluntary military service; males are registered for the draft at 17 years of age; 1-year service obligation (conscripts can only be sent to combat zones after 6 months of training); reserve obligation for non-officers to age 50; enrollment in military schools from the age of 16, cadets classified as members of the armed forces.