(a) Section 342.552 applies to a transaction:
(1) that is made by a person who holds a license under Chapter 342;
(2) that is subject to Chapter 342 or 346; and
(3) the rate of which is authorized by this chapter.
(b) Subchapter L, Chapter 342, applies to a loan:
(1) that is subject to Chapter 342; and
(2) the rate of which is authorized by this chapter.