Debit card interchange fees have been regulated (aka price controls) in the US since at least 2011 https://sgp.fas.org/crs/misc/R41913.pdf https://sgp.fas.org/c

Debit card interchange fees have been regulated (aka price controls) in the US since at least 2011 https://sgp.fas.org/crs/misc/R41913.pdf https://sgp.fas.org/crs/misc/R41913.pdf