(a) The commissioner may adopt rules for this subchapter, including rules establishing full-day and half-day minutes of operation requirements as provided by Section 25.081.(b) Section 2001.0045, Government Code, does not apply to rules adopted under this section.Amended by Acts 2019, Texas Acts of the 86th Leg.- Regular Session, ch. 943,Sec. 2.024, eff. 9/1/2019, op. beginning with the 2019-2020 school year.Added by Acts 2017, Texas Acts of the 85th Leg. - Regular Session, ch. 851,Sec. 5, eff. 6/15/2017, op. beginning with the 2018-2019 school year.