1.  In some cases, employers have unilaterally extended the practice to existing employees as a matter of company policy.

2.  Ten years later, it extended the practice to all its stocks.

3.  The actors want to be paid each time a commercial is shown on network television and want to extend that practice to cable television.

4.  The postal service started irradiating mail bound for Washington this week and has plans to extend the practice to other distribution centers around the country.

5.  Though a number of near-misses have been reported, the FAA wants to extend the practice to flights at night and in the rain.

6.  BMW said it would eventually extend the practice to other models.

7.  Even before the start of the six-month exercise, the Philippine government said it may extend the practice to a year.

8.  The group said Indonesian logging companies have caused environmental problems at home in Indonesia through illegal logging and were extending the practice abroad.