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  1. 1926 Subpart P App C - Timber Shoring for Trenches

  2. Appendix C to Subpart P of Part 1926, Title 29 -- Timber Shoring

  3. 1926.652 - Requirements for protective systems. | Occupational …

  4. Timber shoring for trenches | OSHA.gov | Occupational Safety …

  5. Engineer's Corner: OSHA Soil Types and Their Impact on Shoring

  6. App C - Timber Shoring for Trenches - UpCodes

  7. Everything You Must Know About Timber Shoring - SafetyCulture

  8. A Guide to Shoring: Types, Techniques and Applications