Section 311.004 - Rulemaking(a) The agency and commission shall adopt rules as necessary to administer each entity's duties under this chapter. To the extent possible, the agency and commission shall cooperate with each other in adopting rules so that all rules adopted under this chapter are consistent and easily administered.(b) Rules adopted under this section must include a requirement that participation in a certified program under this chapter is voluntary.Added by Acts 1999, 76th Leg., ch. 1422, Sec. 1, eff. 9/1/1999.