MCAA Gateway: June 2019
On Jan. 1, 2016, the Marble Institute of America (MIA) and the Building Stone Institute (BSI) began a two-year joint venture to consolidate operations. Together, MIA and BSI (known as MIA+BSI, the Natural Stone Institute) serve more than 1,900 members in
MIA Accreditation for natural stone fabricators and commercial contractors recognizes companies that meet high industry standards