(1) This chapter prescribes maximum charges for all creditors, except lessors and those excluded, making consumer credit sales and consumer loans, and sales and loans made subject to the provisions of this chapter by agreement, and except as otherwise provided by this chapter displaces any existing limitations and provisions regulating maximum interest and charges, minimum charges, additional charges, delinquency charges, deferral charges, allocation of charges and methods of computing rebates upon prepayment, refinancing or consolidation with respect to consumer credit sales and consumer loans, and the debtors' remedies and penalties provided by this chapter displace all existing provisions relating to remedies, penalties and forfeitures for usury and usurious contracts as to transactions covered by this chapter.
(2) Except as provided in subsection (1) of this section or elsewhere in this chapter, this chapter does not displace powers or limitation on powers which supervised financial organizations are authorized to exercise under the laws of the United States or other laws of this state in effect after the operative date of this chapter.
(3) This chapter also prescribes in various articles protective measures for consumers in transactions not necessarily involving consumer credit.