• Marble Institute of America
    A source of information on the standards of workmanship and practice and suitable application of stone products.
  • The American Institute of Architects
    A professional organization founded in 1857 representing the interests of American architects
  • ASTM International
    World leader in the development of international standards for materials, products, systems and services used in construction, manufacturing and transportation to improve product quality, facilitate Access to markets and promote consumer confidence.
  • American National Standards Institute
    A not for profit institute that manages and coordinates national, regional, international standards and conformity assessment issues in the United States.

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