; (2) maintain, develop, and expand markets and uses for concrete masonry products in the domestic marketplace; and (3) promote the use of concrete masonry products in construction and building. (b) Limitation Nothing in this division may be construed to provide for the control of production or otherwise limit the right of any person to manufacture concrete masonry products. 1303. Definitions For the purposes of this division: (1) Block machine The term block machine means a piece of equipment that utilizes vibration and compaction to form concrete masonry products. (2) Board The term Board means the Concrete Masonry Products Board established under section 1305. (3) Cavity The term cavity means the open space in the mold of a block machine capable of forming a single concrete masonry unit having nominal plan dimensions of 8 inches by 16 inches. (4) Concrete masonry products The term concrete masonry products refers to a broader class of products, including concrete masonry units as well as hardscape products such as concrete pavers and segmental retaining wall units, manufactured on a block machine using dry-cast concrete. (5) Concrete masonry unit The term concrete masonry unit — (A) means a concrete masonry product that is a manmade masonry unit having an actual width of 3 inches or greater and manufactured from dry-cast concrete using a block machine