The Railroad Commission of Texas adopted amendments to 16 Tex. Admin. Code §1.5, Carbon Dioxide (CO2). The purpose of the proposed rules is to protect underground sources of drinking water while promoting the capture and storage of anthropogenic CO2. The rule took effect December 20, 2010. http://www.sos.state.tx.us/texreg/pdf/backview/1217/1210is.pdf pp. 11202-23.