---
title: Structural Engineering Blog | SSFI
description: SSFI | DH Glabe & Associates has unparalleled exposure in structural engineering, nothing compares to practical hands-on experience. Read our blog here
---

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# Blog

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#### [Did You Ever Wonder?](https://www.dhglabe.com/blog/did-you-ever-wonder)

 By [David H. Glabe, P.E.](https://www.dhglabe.com/blog/author/david-h-glabe-p-e) / May 31, 2006 

 Did you ever wonder where the OSHA standards came from? For that matter, did you ever wonder where OSHA came from? How did the scaffold standards come to be? Did they always exist? Have you ever heard of Letters of Interpretation and Directives? You might be surprised at the answers. The Federal...

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