Ion drives are far less dangerous and require much less stringent safety, usually only a large-ish vacuum chamber is needed.

'We must do more than simply continue to meet the stringent safety and environmental standards imposed by statute.'

New Zealand has stringent safety and emission standards.

To meet increasingly stringent safety and exhaust emission regulations, big-block engine options were discontinued.

The bill, which was proposed in spring 2002, would provide more stringent safety and training standards for workers doing lead abatement.

TCIA has more than 2,000 member companies who recognize stringent safety and performance standards and who are required to carry liability insurance.

Owner controlled insurance broker and insurance underwriter requires more stringent safety and loss control procedures.

Lense assured her, "It would be under the most stringent safeties and controls, of course."

And since it is classified as a car, the Forester meets the stringent safety and emissions standards of automobiles.

Such delivery devices are legally classed as drugs and must meet stringent safety and effectiveness tests before being allowed on the market.