1.   Oil slick prompts no-fishing zone Fishermen have introduced a voluntary ban on fishing in the area surrounding the Shetland oil slick.

2.   The district is calling for a voluntary ban on using wood-burning stoves, in order to improve air quality.

3.   Fishermen have introduced a voluntary ban on fishing in the area surrounding the Shetland oil slick.

4.   A voluntary ban is in operation, which most drivers observe -- but not all, and the walking lobby wants it enforced.

5.   A voluntary ban was imposed by the London trade in order to give stocks breathing and breeding space.

6.   Analysts said declining sales of most alcoholic beverages made it all but inevitable that the industry would seek try to drop its voluntary ban.

7.   Anticipating the move, the livestock industry and veterinary groups established a voluntary ban on the use of such feeds.

8.   At one Massachusetts school, parents asked for, and got, a voluntary ban on all children bringing the popular lunch item to school.

9.   At a White House event where he asked for a voluntary ban on human cloning experiments, President Clinton stood next to his vice president and defended him.

10.   Bachorik said more recent surveys have found better compliance with the voluntary ban, with few plants willing to process sheep at all.