Today, in the evening of Saturday, 16 March 2013, after the First Vespers of the Fifth Sunday of Lent, the images (statues of saints and our Lord included) and crosses in the Church should be covered, especially if the Bishops’ Conference recommends such a practice.
This is to prepare us for the Holy Week, and to begin the journey towards the Holy Triduum (Holy Thursday, Good Friday, Easter Vigil on Holy Saturday), that culminates with the suffering, death, and resurrection of our Lord Jesus Christ.
The crosses are covered until the Good Friday services, when they are revealed to the people, in the Veneration of the Cross. The other images in the churches remain veiled until before Easter Vigil celebration begins.