VISIT THE WEB SITE OF THE MEKNES CONGRESS The next worldwide UISPP Congress will take place in the imperial city of Meknes (Morocco) from 1st to 5th September 2020. The Web site of the congress will be opened very soon, and the mine deadlines are: May – October 2019: proposals for the sessions. December 2019 – April 2020: communications and posters proposals.