California is the only other state with a similar law.
A few other states have similar laws, but most do not.
At least 28 other states have passed similar laws, many in the last few years.
About 20 states have passed similar laws in the last 10 years.
At least six states, including California, have passed similar laws.
She also saw similar laws passed in three other states.
In the next few years, over 30 states passed similar laws.
As of April 2008, 23 other states have similar laws.
In early 2004 a similar, proposed law had already appeared.
In many other countries similar laws either already exist or soon will.
