21.   Struggling with huge losses, airlines have canceled or reduced service to many cities, and new security procedures will require passengers to get to airports much earlier.

22.   Supreme Court procedures require that at least four of the nine justices agree to hear a case.

23.   That procedure does not require surgeons to open the chest.

24.   The company disagreed, saying doctors spent on average several minutes more than the procedure generally required before switching to the laser.

25.   The forms are tricky and the procedure requires a dismal trek through the federal bureaucracy.

26.   The new procedures require that the exclusive agent tell the seller of all offers and recommend that the seller inform any other co-brokers that there are other offers.

27.   The procedure requires anesthesia and carries a slight risk of infection, rupture of the main artery and death.

28.   The procedure never requires a paper transaction.

29.   The procedure requires cutting a hole in the attic floor and mounting the unit across the joists.

30.   The procedure usually requires that the patient be sedated.