Masonry unit.
15 C.F.R. § 1500.15
in effectEffective: 2024-07-01Masonry unit means a noncombustible building product intended to be laid by hand or joined using mortar, grout, surface bonding, post-tensioning or some combination of these methods.
Source: eCFRURL: https://www.ecfr.gov/api/versioner/v1/full/2024-07-01/title-15.xmlFetched: 7/26/2026
