The U.S. Nuclear Waste Technical Review Board will host a workshop Sept. 25-26 in Las Vegas and will then meet Sept. 27 in Amargosa Valley to address various issues concerning Yucca Mountain.

The workshop will focus on the potential for localized corrosion of Alloy-22, a proposed material for waste packages in which radioactive waste will be disposed, under aqueous conditions that might exist in the proposed repository. The results of recent and ongoing testing related to the evolution of aqueous environments in the repository and the potential initiation, propagation, cessation and consequences of Alloy-22 localized corrosion will be addressed during the workshop.

The workshop is open to the public and will be held at the Las Vegas Marriott Suites, 325 Convention Center Drive; telephone 702-650-2000, fax 702-650-9466.

The workshop agenda will be available on the board's Web site (www.nwtrb.gov about one week before the date of the workshop.

A final meeting agenda for the board's Sept. 27 meeting in Amargosa Valley will also be available about one week before the meeting date atwww.nwtrb.gov and available by telephone.

The meeting will be held at 8 a.m. Sept. 27 at the Longstreet Inn and Casino, Stateline and Highway 373, in Amargosa Valley.

The meeting will be public and opportunities for comment will be provided.

The board will review the Department of Energy's efforts to develop and articulate a safety case for a proposed geologic repository for the disposal of spent nuclear fuel and high-level radioactive waste at Yucca Mountain at this meeting.

The board was charged with conducting an independent review of the technical and scientific validity of DOE activities related to implementing the Nuclear Waste Policy Act.

Those who wish to speak are encouraged to sign the "public comment register" at the check-in table. A time limit may have to be set on individual remarks, but written comments of any length may be submitted for the record.

Transcripts for the workshop and the meeting will be available no later than Oct. 19 and Oct. 23, respectively, on the board's Web site,www.nwtrb.gov, by email, on computer disk and on a library-loan basis in paper format from Davonya Barnes of the board's staff.

For more information, contact Karyn Severson, NWTRB external affairs, 2300 Clarendon Blvd., Suite 1300, Arlington, VA 22201-3367; telephone 703-235-4473, fax 703-235-4495.