The State Environmental Commission adopted amendments to Nev. Admin. Code §445B.001, relating to Air Quality provisions and repealing provisions related to the Nevada Clean Air Mercury Rule Program. http://www.leg.state.nv.us/register/2010Register/R040-10I.pdf.

The State Environmental Commission adopted amendments to Nev. Admin. Code §486A.

The Department of Environmental Quality will hold a public hearing on proposed adoption of Okla. Admin. Code §17:4, Biomedical Waste Incinerators. The hearing will be April 21, 2010. http://www.deq.state.ok.us/aqdnew/council_mtgs/april10/apr10rules.htm.

The Texas Commission on Environmental Quality adopted amendments to 30 Tex. Admin. Code §§114.620 and 114.622, Diesel Emissions Reduction Incentive Program for On-Road and Non-Road Vehicles; and 30 Tex. Admin. Code §§114.650 - 114.658, Texas Clean Fleet Program. http://www.sos.state.tx.us/texreg/sos/adopted/30.ENVIRONMENTAL%20QUALITY.html#542.

The Department of Environmental Conservation seeks public comment on the 2010 draft §303d List of Impaired Waters and the State Priority Waters List. Comments are due April 9, 2010. http://www.vtwaterquality.org/cfm/notices/info.cfm?id=1435.

The Marine Resources Commission adopted amendments to 4 Va. Admin. Code §20-490, pertaining to Sharks; §20-530, pertaining to American Shad; §20-620, pertaining to Summer Flounder; §20-720, pertaining to restrictions on oyster harvest; §20-910, pertaining to Scup (Porgy); and §20-950, pertaining to Black Sea Bass. http://legis.state.va.us/codecomm/register/vol26/iss14/v26i14.htm#f4v20490.

The Office of Environmental Health Hazard Assessment will hold a public workshop on proposed amendments to Cal. Code Regs. tit. 27, §§25801, 25803, and 25805, No Observable Effect Levels. These sections set out the procedures and criteria for determining an exposure level where there would be no observable effect. The hearing will be April 14, 2010. Comments are due April 28, 2010. http://oehha.org/prop65/public_meetings/04022010meet.html.

The State Water Resources Control Board seeks public comment on the scope and content of information to be considered in amending the Water Quality Control Policy for Developing California§s Clean Water Act Section 303(d) List. The proposed amendment will incorporate State Water Quality Control Policy for Sediment Quality Objectives for Enclosed Bays and Estuaries. Comments are due April 12, 2010.

The State Water Resources Control Board will hold a public meeting on proposed adoption of the Water Quality Control Policy on the Use of Coastal and Estuarine Waters for Power Plant Cooling. The proposed Policy establishes technology-based standards to implement federal CWA §316(b). The proposed policy would apply to the 19 existing power plants that currently have the ability to withdraw over 15 billion gallons per day from coastal and estuarine waters using a single-pass system. The meeting will be May 4, 2010. Written comments are due April 13, 2010.

The Water Quality Control Commission will hold a public hearing on proposed amendments to 5 Colo. Code Regs. §1002-32, Classifications and Numeric Standards Arkansas River Basin; §1002-33, Classifications and Numeric Standards for Upper Colorado River Basin and North Platte River; §1002-36, Classifications and Numeric Standards for Rio Grande River Basin; and §1002-38, Classifications and Numeric Standards for South Platte River Basin, Laramie River Basin, Republican, and Smoky Hill River Basin. The hearing will be July 12, 2010.