With our help, nearly every state has set higher academic standards for public schools, and a voluntary national test is being developed to measure the progress of our students.

CNN: Prepared Text of Clinton's State of the Union speech

Thanks to the actions of this Congress last year, we will soon have for the very first time a voluntary national test based on national standards in fourth grade reading and eighth grade math.

CNN: State Of The Union

Sohn said the effort will be a significant test whether voluntary measures can reduce copyright infringement.

NPR: Music, Movie Industry To Warn Copyright Infringers

The exercise was conducted in 2003 through the voluntary completion of a questionnaire by drivers who had failed or refused a breath test or who when tested passed on amber which indicated the presence of alcohol in their breath.

BBC: A typical drink driver is a man, the study says