# Standard Interpretations
1 - 1926.451(f) - Application of OSHA construction standards that govern the loading of materials onto scissor lifts and the restraining of those stored materials.
2 - 1926.451(f) - Requirements in 1926 Subpart L "Scaffolds" regarding the use of plywood to make platform decking for scaffolds.
3 - 1926.451(f) - Wire rope clips on suspension scaffolds; safety latches on large crane hooks; order of assembly for hanging scaffolds; and horizontal lifeline design.
4 - 1926.451(f) - Use of portable ladders on tank builder's scaffolds during scaffold dismantling process in construction.
5 - 1926.451(f) - Compliance of Master Plank scaffold planking with OSHA plank strength requirements.
6 - 1926.451(f) - Use of aerial lift or scissor lift guardrails as a work or scaffold platform.
7 - 1926.451(f) - The difference between maintenance and construction;scaffold inspection requirements; and definition of periodic scaffold inspection.
8 - 1926.451(f) - Fall protection during electrical maintenance and construction work on aerial lifts.
9 - 1926.451(f)(1) - Use of mobile scaffolds with casters in the unlocked position; moving the mobile scaffold without dismounting.
10 - 1926.451(f)(1) - Whether scaffold components may be loaded in excess of minimum load ratings specified in 29 CFR Part 1926 Subpart L; whether a safety factor must be added to such load ratings; Non-Mandatory Appendix A.
11 - 1926.451(f)(1) - Whether plywood may be used as scaffold decking material over wood scaffold planks; 29 CFR 1926.450 and 1926.451.
12 - 1926.451(f)(16) - Whether plywood may be used as scaffold decking material over wood scaffold planks; 29 CFR 1926.450 and 1926.451.
13 - 1926.451(f)(12) - 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.
14 - 1926.451(f)(3) - 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.
15 - 1926.451(f)(16) - Clarification of 1926.451(a)(6) requirements for scaffolds and bridge-painting projects.
16 - 1926.451(f)(13) - Clarification of 1926.451(a)(6) requirements for scaffolds and bridge-painting projects.
17 - 1926.451(f)(15) - Use of portable ladders on tank builder's scaffolds during scaffold dismantling process in construction.
18 - 1926.451(f)(15)(iii) - Use of portable ladders on tank builder's scaffolds during scaffold dismantling process in construction.
19 - 1926.451(f)(16) - Compliance of Master Plank scaffold planking with OSHA plank strength requirements.
20 - 1926.451(f)(16) - Composition, span, and deflection of underslung bridge scaffold platform systems.
21 - 1926.451(f)(16) - Use of 2"x6" No 2 pine boards as a scaffold platform; application of 1926.451(a) and 1926.451(f)(16) when erecting and dismantling scaffolds.
22 - 1926.451(f)(7) - Use of 2"x6" No 2 pine boards as a scaffold platform; application of 1926.451(a) and 1926.451(f)(16) when erecting and dismantling scaffolds.
23 - 1926.451(f)(17) - Grounding precautions for arc welding from suspended scaffolds.
24 - 1926.451(f)(17)(iv) - Arc welding from suspended scaffolds: feasibility of grounding.
25 - 1926.451(f)(3) - Storage of materials that prevents inspection of scaffolds before workshifts; incidental storage amounts that do not inhibit scaffold inspection.
26 - 1926.451(f)(3) - Training qualifications for the competent person inspecting scaffolds.
27 - 1926.451(f)(3) - Foundation requirements for scaffolds; competent person qualifications for assessing foundations.
28 - 1926.451(f)(7) - Foundation requirements for scaffolds; competent person qualifications for assessing foundations.
29 - 1926.451(f)(3) - Fall protection, training, inspection and design requirements of aerial lifts and scissor lifts/scaffolds.
30 - 1926.451(f)(3) - Requirements applicable to the design, inspection, and testing of imported scaffolding.
31 - 1926.451(f)(3) - Clarification of requirements for construction scaffold erection/dismantling; safe means of access; blocks for two-point suspension scaffolds.
32 - 1926.451(f)(3) - Revised response regarding the storage of materials on a scaffold for more than one shift's work
33 - 1926.451(f)(7) - Revised response regarding the storage of materials on a scaffold for more than one shift's work
34 - 1926.451(f)(4) - Scaffolds: removal of bracing; maximum loads; damaged planking; and foundations.
35 - 1926.451(f)(6) - Minimum approach distances to insulated power lines by construction workers working close to, but not on, the lines.
36 - 1926.451(f)(7) - Requirements for being designated a competent person under Part 1926 Subpart L (Scaffolds).