105 CMR 171.120
Refresher Training Deadlines
(A) Each first responder shall satisfactorily complete a refresher course in first aid, other than
cardiopulmonary resuscitation, every three years after initial training in first aid.
Each first responder shall satisfactorily complete a refresher course in cardiopulmonary
resuscitation every two years after initial cardiopulmonary resuscitation training.