1. Except as provided in subsection 2, this chapter applies to electronic records and electronic signatures relating to a transaction.
2. This chapter does not apply to a transaction to the extent it is governed by any of the following:
a. A law governing the creation or execution of wills, codicils, or testamentary trusts.
b. Chapter 554 other than articles 2 and 13 and section 554.1306.
3. A transaction subject to this chapter is also subject to other applicable substantive law.