We would have done it under the most stringent of conditions.

The changes are among the most stringent in the country.

The standard of proof is among the most stringent in the country.

Until now, California has had the most stringent ground water limits, at 13 parts per billion.

Media companies have taken the most stringent steps so far.

The state law is considered one of the most stringent in the country.

The state has some of the most stringent air quality regulations in the world.

Each was subject to regular security checks, of the most stringent nature.

Gun controls are already among the most stringent in the world.

The new safety requirements will be the most stringent in the world.