# Standard Interpretations
1 - 1926.451(a) - Re: Subpart L; scaffolds; Companion Rail, rail extensions for mobile scaffolds; 1926.451.
2 - 1926.451(a) - Whether plywood may be used as scaffold decking material over wood scaffold planks; 29 CFR 1926.450 and 1926.451.
3 - 1926.451(a) - Whether it is permissible to use a concrete block hanging on a coupling pin as a counterweight to prevent a scaffold from tipping.
4 - 1926.451(a) - Whether there is a conflict between provisions in 1926.451 regarding the use of screening.
5 - 1926.451(a) - 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.
6 - 1926.451(a) - Evaluation of the Jax Scaffold System.
7 - 1926.451(a) - Wire rope clips on suspension scaffolds; safety latches on large crane hooks; order of assembly for hanging scaffolds; and horizontal lifeline design.
8 - 1926.451(a) - Revised response regarding the storage of materials on a scaffold for more than one shift's work.
9 - 1926.451(a) - Compliance of Master Plank scaffold planking with OSHA plank strength requirements.
10 - 1926.451(a) - Request that OSHA adopt a requirement that all scaffold planks meet a "scaffold grade" under recognized grading rules.
11 - 1926.451(a) - GFCI and coverplate requirements in construction;use of fall arrest systems and scaffolding.
12 - 1926.451(a) - Scaffolds may serve as fall arrest anchorages.
13 - 1926.451(a) - New Fall Protection standards and standards for scaffolds used during dry wall work
14 - 1926.451(a) - Lean-to Scaffolds.
15 - 1926.451(a) - Prohibition of lean-to scaffolds.