; and (3) promote the use of concrete masonry products in construction and building. (b) Limitation Nothing in this Act may be construed to provide for the control of production or otherwise limit the right of any person to manufacture concrete masonry products. 3. Definitions For the purposes of this Act: (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 5 . (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 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. Such term includes concrete block and related concrete units used in masonry applications. (6) Conflict of interest The term conflict of interest means, with respect to a member or employee of the Board, a situation in which such member or employee has a direct or indirect financial or other interest in a person that performs a service for, or enters into a contract with, for anything of economic value. (7) Department The term Department means the Department of Commerce. (8) Dry-Cast concrete The term dry-cast concrete means a composite material that is composed essentially of aggregates embedded in a binding medium composed of a mixture of cementitious materials (including hydraulic cement, pozzolans, or other cementitious materials) and water of such a consistency to maintain its shape