Soon you may be paying more for your EFT processing.

Below is the simplest summary of the "Durbin Amendment" that can be found on the internet.
Rule #1 – Debit interchange fees are capped at 21 cents per card
transaction, plus five basis points upon ticket amount, plus one cent for card
issuers who have implemented fraud prevention procedures.
Rule #2 – Debit transactions must be able to be routed through two
unaffiliated networks and merchants can designate preferred routing.
Previously implemented rules noted in the Amendment:
• Companies have the right to set a minimum amount ($10.00 or less)
for which they will accept credit cards (not debit cards) as payment options.• Merchants have the option to offer discounts for cash payments, but cannot favor one card over another.
http://www.durbininterchangeamendment.org/
Regulation II - Debit Card Interchange Fees and Routing [R-1404]
Comments
http://www.federalreserve.gov/generalinfo/foia/index.cfm?doc_id=R-1404&doc_ver=1&ShowAll=YesComments
Rules summary
http://www.chargelogic.com/blog/tag/durbin-amendment/