Concrete masonry unit.
15 C.F.R. § 1500.6
in effectEffective: 2024-07-01Concrete 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.
Source: eCFRURL: https://www.ecfr.gov/api/versioner/v1/full/2024-07-01/title-15.xmlFetched: 7/26/2026