205 ILCS 715/10: Interface between independent data processing servicers.

(a) Whenever a financial institution contracts with an independent data processing servicer for any product or service that requires an interface of communications, data, or systems with a second independent data processing servicer with which the financial institution has a contractual relationship, the second independent data processing servicer shall permit the necessary interface to occur pursuant to an interface agreement. The interface agreement shall contain commercially reasonable fees and charges and shall provide for commercially reasonable access to necessary technical data.

(b) An independent data processing servicer shall exercise reasonable promptness in negotiating an interface agreement under the provisions of this Act and shall not exercise undue delay or otherwise act in bad faith as a means of avoiding the negotiation or implementation of an interface agreement.