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# Directives
1 1997 - 01/07/1997 - CPL 02-01-023 [CPL 2-1.23] - Inspection Procedures for Enforcing Subpart L, Scaffolds Used in Construction - 29 CFR 1926.450-454
# Federal Registers
1 1999 - 01/04/1999 - Washington State Standards; Notice of Approval. - 64:184-186
# Standard Interpretations
1 2013 - 12/06/2013 - Weight of the scaffold in determining whether the 4 to 1 factor is satisfied in construction and general industry standards
2 2006 - 05/18/2006 - Whether plywood may be used as scaffold decking material over wood scaffold planks; 29 CFR 1926.450 and 1926.451.
3 2005 - 01/19/2005 - Application of OSHA construction standards that govern the loading of materials onto scissor lifts and the restraining of those stored materials.
4 2004 - 04/21/2004 - Composition, span, and deflection of underslung bridge scaffold platform systems.
5 2004 - 01/22/2004 - Use of portable ladders on tank builder's scaffolds during scaffold dismantling process in construction.
6 2003 - 10/30/2003 - Revised response regarding the storage of materials on a scaffold for more than one shift's work.
7 2003 - 07/16/2003 - Fall protection requirements during installation and removal or tarps and sheeting on/from scaffolds; qualifications of person determining safety on scaffold with wind imposed forces.
8 2002 - 10/23/2002 - Use of aerial lift or scissor lift guardrails as a work or scaffold platform.
9 2002 - 04/16/2002 - Planking, safety line, and personal fall arrest system requirements for tank builder's scaffolding.
10 2001 - 12/11/2001 - Exemptions for installation of guardrails on wall (interior) side.
11 2001 - 05/25/2001 - Acceptability of climbing over or through guardrails on scaffolds used in construction.
12 2001 - 05/10/2001 - Requirements applicable to the design, inspection, and testing of imported scaffolding.
13 2001 - 04/10/2001 - Requirements of Interim Fall Protection Compliance Guidelines for Residential Construction for guardrails and fall protection during roofing work.
14 2000 - 08/01/2000 - Foundation requirements for scaffolds; competent person qualifications for assessing foundations.
15 2000 - 05/18/2000 - Evaluation of a single-person, manually propelled, mobile work platform.
16 1987 - 08/11/1987 - Access ladder for scaffolds.
17 1981 - 02/12/1981 - Ladders and Scaffolding.
18 1981 - 01/20/1981 - Size of lumber to be utilized for side rails of job-made ladders.

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