Rev. [ed.]; "A Guide to Safe Scaffolding was initially prepared ... by David L. Potts. ... This guide has been updated as of January 2001 to reflect current requirements of the standards, with an effort also made to provide helpful information as...
"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...
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