"A Guide to Safe Scaffolding was initially prepared ... by David L. Potts. ... The information in this guide was reviewed in 2008."--P.  of cover.; "Reviewed 8/08"--P.  of cover.; "The projected cost of the NCDOL OSH program for federal...
"July 2011."; "Co-lead agency: US Army Corps of Engineers - Wilmington District [and] North Carolina Department of Transportation ; cooperating agencies: US Environmental Protection Agency, US Fish and Wildlife Service"--Cover.; Includes...
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