1.   If state regulators approve the request, as expected, the company would be the first in the state to vary rates by time period.

2.   The engine has eight models with varying thrust rates.

3.   Researchers are testing some of those for safety and immune response, with varying success rates.

4.   They also said fire insurers would be allowed to vary rates according to geographical location to reflect risks such as the frequency of typhoons or proximity to active volcanoes.

5.   Giving the Scottish Parliament the power to vary tax rates did not mean it would necessarily use that power, Blair insisted.