The trial is set to start on the tragedy's one-year anniversary.

The bus driver, 53-year-old Quintin Watts of Stockton, has pleaded not guilty to charges of vehicular manslaughter and traffic violations in the Oct. 5, 2008, charter bus crash.

Watts was taking 41 mostly elderly Hmong and Mien immigrants to the Colusa Casino Resort when the bus left a rural road and rolled over, injuring dozens. Survivors say Watts may have dozed off at the wheel.

Watts faces up to 66 years in prison if he is convicted.

A judge is ordering extra potential jurors to appear because of heavy pretrial publicity.