Doctors, nurses, EMTs, paramedic, firefighters, other medical personnel and law enforcement can get a free ride on the South Shore Line next week.

They’re offering rides free of charge as a way to say thank you for their service. From Saturday, September 7 through Wednesday, September 11, medical and law enforcement personnel can present their valid work ID in order to get a ride on all westbound and eastbound weekday and weekend trains.

And, the South Shore Line reminds families that up to three children ages 13 and under can always ride free on all daily off-peak, weekend and holiday trains.