Source Note: The provisions of this §521.1 adopted to be effective November 18, 1988, 13 TexReg 5573; amended to be effective January 7, 1991, 15 TexReg 7616; amended to be effective February 18, 1992, 17 TexReg 942; amended to be effective August 15, 1994, 19 TexReg 5953; amended to be effective August 1, 1995, 20 TexReg 5241; amended to be effective December 11, 1997, 22 TexReg 12055; amended to be effective October 17, 1999, 24 TexReg 8752; amended to be effective December 6, 2001, 26 TexReg 9865; amended to be effective February 1, 2005, 30 TexReg 392; amended to be effective November 29, 2006, 31 TexReg 9615; amended to be effective August 17, 2008, 33 TexReg 6381;amended to be effective October 10, 2012, 37 TexReg 8019; amended to be effective October 8, 2014, 39 TexReg 7927; amended to be effective October 7, 2015, 40 TexReg 6900; amended to be effective August 3, 2017, 42 TexReg 3786 |