1.   Following the London Conference the nine member countries of the WEU agreed to tighten the enforcement of sanctions in the Adriatic sea and on the Danube river.

2.   As lawmakers enact new laws, fair board and livestock show officials are writing their own rules and tightening enforcement of existing ones.

3.   Meanwhile, Ms. Browner has promised to tighten enforcement of rules governing underground gasoline storage tanks.

4.   The FTC recommended tightening enforcement of ratings curbs, a step that the industry should consider as a matter of civic responsibility and political prudence.

5.   The State Board of Pharmacy, concerned by what it sees as a potentially dangerous trend, began six months ago to tighten enforcement.

6.   Thirty people have been fined since enforcement was tightened last summer.

7.   You would think that news would send state officials scurrying to tighten enforcement of gun-control laws.

8.   In recent months, the government has tightened enforcement of a longstanding ban against official use of foreign cars.

9.   In recent trade talks with the United States, China pledged to tighten lax enforcement of laws against the infringement of copyrights, patents and trademarks.

10.   Law said State DOEs had been asked to tighten enforcement and make daily reports on open burning to the headquarters.