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Draft Specification: NEW TIR-A21, Structural Test Deflection and Permanent Deformation Gauge Placement for Folding Doors
Ballot: #26-1009c
From: Structural Test Deflection and Permanent Deformation Gauge Placement Review Task Group
To: Architectural and Residential Products Councils
Issued: 3/4/26
Comments Due By: 3/18/26
Review Draft and Submit Your Comments