RIAM meaning in International ?

Answer: What is Riverside International Automotive Museum mean?

The Riverside International Automotive Museum, or RIAM, was a non-profit corporation, located in Riverside, California, dedicated to "Preserving the memory of California's rich motorsports heritage". Primary museum exhibits included memorabilia and artifacts from the Riverside International Raceway, the Ontario Motor Speedway, and local racing champion Dan Gurney. In June 2016, the museum closed following the death of Doug Magnon in 2015, one of the founders. The vehicle collection was sold in two different auctions in 2016, based on a decision by the Board of Directors.

The museum housed several history-making race cars, and the largest and most comprehensive collection of Maserati road cars in the United States, including an example of every Maserati model that has been made available in the U.S. since 1951.

reference

Full Form	Category
Rock Island Arsenal Museum	Governmental
Riverside International Automotive Museum	International
Royal Irish Academy of Music	Regional