Cronholm earns RMMI Certified Masonry Contractor credential Words: Nancy Aleshire/Public/News/20120908135000-1.jpg" width="600" height="338" border="0" alt="RMMI’s masonry certification program is a year-long series of continuing education classes covering all aspects of masonry." />RMMI’s masonry certification program is a year-long series of continuing education classes covering all aspects of masonry.Josh Cronholm, VP of Ammex Masonry, has earned the Certified Masonry Contractor (CMC) credential from the Rocky Mountain Masonry Institute, a nonprofit trade association of more than 100 companies throughout Colorado, Wyoming, Montana and Idaho. Principals and supervisory employees with at least five years of experience in masonry construction are eligible to enroll in the CMC credential program, which consists of 12 one- and two-day courses covering every aspect of masonry design, construction, safety and management. Expert instructors have been recruited from the top ranks of the masonry research and industry community, including the Brick Industry Association, National Concrete Masonry Association and The Masonry Society. Participants who attend all of the courses and pass the comprehensive examinations are awarded the designation of Certified Masonry Contractor. Certified Masonry Contractors are eligible to display the CMC logo on their business materials and are eligible to bid on projects that specify a certified masonry contractor.