(a) The commission shall adopt rules as necessary to enforce this chapter, including rules governing:
(1) license applications;
(2) qualifications of applicants;
(3) standards of conduct for drillers, including standards for marking well drilling rigs and equipment; and
(4) procedures and practices before the department.
(b) The commission may not adopt a rule under this chapter that:
(1) regulates the installation or repair of well pumps and equipment by:
(A) a person on property the person owns or controls for the person's own use;
(B) an employee of a person described by Paragraph (A); or
(C) a person who is not hired or compensated and who acts on behalf of a person described by Paragraph (A); or
(2) requires a person who owns or controls property or possesses a well to complete, repair, or retrofit the well to any standard other than a standard in effect at the time the well was originally completed unless the well is found to be a threat to public health and safety or to water quality.