11.   Republican rules bar members who have been censured from serving as committee chairmen and by inference, in leadership positions.

12.   Senators and staff members are also barred from taking part in travel or entertainment that is primarily recreational and paid for by lobbyists.

13.   The American Society of Gene Therapy adopted a policy in April that bars its members from any involvement with human experiments sponsored by companies in which they have equity.

14.   The counterterrorism bill would also bar members of blacklisted organizations from visiting the United States.

15.   The old House rules barred members from accepting any free gifts or meals.

16.   The old law allowed school boards to bar removed members for one year, but only in districts outside New York City.

17.   There are no Senate rules barring a member from voting twice on a bill of impeachment, and the Constitution is silent on the matter.

18.   Ultimately, he chose a middle course, censuring the congregation, an action that bars its members from synod boards and committees.

19.   Visa and MasterCard have both barred their members from issuing American Express cards.

20.   Western nations led by the United States have instituted a variety of embargoes, and Washington has barred members of the leadership from visiting the country.