Seismic solid braces shall consist of steel angles or channels to resist seismic loads with a minimum safety factor of 2 and arranged to provide all directional restraint. Seismic solid brace end connectors shall be steel assemblies that swivel to the final installation angle and utilize two through bolts to provide proper attachment. Seismic solid brace assembly shall have an OPA Preapproval from OSHPD in the state of California verifying the maximum certified load ratings. Solid seismic brace assemblies shall be type SSB or SSBS as manufactured by Mason Industries, Inc. Note: Specifications 12 – 14 apply to trapeze as well as clevis hanger locations. At trapeze anchor locations piping must be clamped to the trapeze. Specifications apply to hanging equipment as well.