Title IV. The Veneration of the Saints, Sacred Images, and Relics
Can. 1186 To foster the sanctification of the people of God, the Church commends to the special and filial reverence of the Christian faithful the Blessed Mary ever Virgin, Mother of God, whom Christ established as the mother of all people, and promotes the true and authentic veneration of the other saints whose example instructs the Christian faithful and whose intercession sustains them.
Can. 1187 It is permitted to reverence through public veneration only those servants of God whom the authority of the Church has recorded in the list of the saints or the blessed.
Can. 1188 The practice of displaying sacred images in churches for the reverence of the faithful is to remain in effect. Nevertheless, they are to be exhibited in moderate number and in suitable order so that the Christian people are not confused nor occasion given for inappropriate devotion.
Can. 1189 If they are in need of repair, precious images, that is, those distinguished by age, art, or veneration, which are exhibited in churches or oratories for the reverence of the faithful are never to be restored without the written permission of the ordinary; he is to consult experts before he grants permission.
Can. 1190 §1. It is absolutely forbidden to sell sacred relics.
§2. Relics of great significance and other relics honored with great reverence by the people cannot be alienated validly in any manner or transferred permanently without the permission of the Apostolic See.
§3. The prescript of §2 is valid also for images which are honored in some church with great reverence by the people.