NATIONAL CONCRETE MASONRY ASSOCIATION (NCMA)
The National Concrete Masonry Association (NCMA), established in 1918, is the national trade association representing the concrete masonry industry. The Association is involved in a broad range of technical, research, marketing, government relations and communications activities.
INTERLOCKING CONCRETE PAVEMENT INSTITUTE
The Interlocking Concrete Pavement Institute (ICPI), founded in 1993 is the North American trade association representing the interlocking concrete paving industry. ICPI is considered by peer associations around the world as the leader in development and dissemination of technical information for design professionals and contractors. ICPI engages in a broad range of technical, marketing, educational, government relations and communications activities.
