The Arizona Medical Training Institute (AMTI) offers CPR and First Aid training classes in Mesa, Arizona. Classes are offered twice a month in evenings from 5:00 p.m. to 9:00 p.m, whereas day classes are available twice a month from 2:30 p.m. to 6:00 p.m. CPR certification is only offered for adult level with 2 years of certification, as per the standards of OSHA guidelines. Moreover, First Aid certification is also valid for two years.