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Determining the Truss Manufacturer TF No. 1068
QUESTION
I am trying to determine the manufacturer of some wood trusses installed in the early 1980s in New Jersey. The stamp mark on the connector plates reads, to the best of my ability, TPL-153A (it could be PPL or TPI, but I am unsure). I need to get in contact with this truss manufacturer in order to determine design loads for the truss, as I am remodeling the store under the roof.
This document is effective until December 31, 2025. After that date, this dated version of the document should not be relied upon. 
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