Figure 1. Aluminum Hydraulic Shoring
Figure 2. Pneumatic/hydraulic Shoring
Figure 3. Trench Kacks (Screw Jacks)
Figure 4. Trench Shields
Authority cited: Section 142.3, Labor Code. Reference 142.3, Labor Code.
Cal. Code Regs. Tit. 8, div. 1, ch. 4, subch. 4, art. 6, app E