41.   Authorities imposed the rationing, which began Wednesday, after scant rainfall, pipeline leaks and heavy sediment resulted in low reservoir levels in the San Juan metropolitan area.

42.   Authorities can impose labor camp sentences without trial.

43.   Authorities have imposed a curfew and deployed more police officers in the village.

44.   Authorities have imposed a dusk-to-dawn curfew in a bid to stem lawlessness, but it is often ignored by rival gangs shooting automatic weapons.

45.   Authorities have imposed strict security measures around the courtroom to frustrate possible attacks.

46.   Authorities impose state of emergency.

47.   Authorities imposed a curfew and censorship.

48.   Authorities imposed a curfew on many parts of Ahmadabad and banned large gatherings in at least a dozen other towns in the state to prevent renewed violence.

49.   Authorities imposed curfew and called in the army.

50.   Based on the terrorist attacks in the United States, Japanese authorities have imposed restricted airspace over World Cup venues.