American Heart Association CPR Certification: The Greenfield Fire Department provides CPR certification courses for a fee. Classes are typically 3-4 hours in length depending on the number of students and the topics to be covered. Following completion of the course, participants will be issued an American Heart Association certification that is valid for 2 years. The cost of these courses is $65/person for certification and $55/person for re-certification. The American Heart Association requires a maximum 6 student to 1 instructor ratio. All learning materials are provided with the cost of the course. If you have less than 6 students, others may be added to fill your course. For more information on Greenfield Fire Departments CPR certification offerings, please contact 414-545-7946 ext. 5 or email Battalion Chief Dan Weber at firstname.lastname@example.org.