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Document Designation and Title Year Select Item(s) C129 Standard Specification for Nonloadbearing Concrete Masonry Units 06 C129 Standard Specification for Nonloadbearing Concrete Masonry Units 05 C129 Standard Specification for Nonloadbearing Concrete Masonry Units 03 C129 Standard Specification for Nonloadbearing Concrete Masonry Units 01 C129 Standard Specification for Nonloadbearing Concrete Masonry Units 00a C129 Standard Specification for Non-Load-Bearing Concrete Masonry Units 75