Yes. When children are swimming in more than two feet of water, a certified lifeguard must be on duty at all times.     
     Source Note:        The provisions of this §744.1907 adopted to be effective September 1, 2010, 35 TexReg 7469; transferred effective March 9, 2018, as published in the Texas Register February 16, 2018, 43 TexReg 909