That state, like New York, has recently required all students to meet tougher academic requirements.

In the 17 other states that do allow recalls of governors, most have tougher requirements to force a recall than California's.

And many states are in open revolt against its tough requirements for issuing driver's licenses.

Honda's new engine will not help the company meet California's toughest requirement.

Principals said they had to scurry to prepare their teachers and students over one summer for the tougher requirements.

More training and evaluation in the above covered subjects with tougher requirements.

I believe that a minimum of five years is a very tough requirement and we could not therefore reduce this time period even further.

There is a similarity however in that the carriers are still subject to tough requirements.

There are also tough requirements so that it is not allowed to present any risk.

Many of those differences have to do with tougher requirements in the House bill to reduce urban smog.