1.   A quick partial water change will often effect an improvement in a matter of hours.

2.   Whether this change in the law will effect much liberalisation, however, will depend on how the ITC wields its powers to impose sanctions.

3.   The change does not effect commercial drivers, who already had eye exams every five years.

4.   The change effects Busch and Winston Cup teams dramatically.

5.   The changes will not effect planes reserved for use by members of Congress or the executive branch, aircraft that is maintained separately by the US Air Force.