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International Masonry Institute Advanced Certification for Tile Installers - Mud Work https://imiweb.org/
The purpose of the ACT Certification program is to establish a testing mechanism which evaluates the skills and knowledge of tile installers who have been pre-qualified by being either a Certified Tile Installer (CTI) through the Ceramic Tile Education Foundation (CTEF) or a journeyman tile setter who has successfully completed the apprenticeship training program conducted by the International Union of Brick and Allied Craftworkers (IUBAC). Advanced Certification for Tile Installers - Mud Work Website
More than two years of education or training after high school required? YesMore than two years of work experience required? YesOral or Written Exam Required? Yes