(b) The rules must establish:

1. (1) standards for certification to ensure the public health and to protect the public from unqualified persons engaging in activities relating to water treatment;
2. (2) classes of certification;
3. (3) duration of certification; and

4. (4) reasonable annual certification fees in an amount sufficient to pay the administrative costs of the certification program, but not to exceed $150 a year for any class of certification.

   Redesignated from Health and Safety Code, Subchapter G, Chapter 341 and amended by Acts 2007, 80th Leg., R.S., Ch. 1084 (H.B. 3017), Sec. 1, eff. June 15, 2007.