Safety requirements for scaffolding in Standards - 29 CFR 4
1910.28(a)(14)
The poles, legs, or uprights of scaffolds shall be plumb, and securely and rigidly braced to prevent swaying and displacement.
1910.28(a)(15)
Materials being hoisted onto a scaffold shall have a tag line.
1910.28(a)(16)
To be continued
Overhead protection shall be provided for men on a scaffold exposed to overhead hazards.
1910.28(a)(17)
Scaffolds shall be provided with a screen between the toeboard and the guardrail, extending along the entire opening, consisting of No. 18 gauge U.S. Standard Wire one-half-inch mesh or the equivalent, where persons are required to work or pass under the scaffolds.
1910.28(a)(18)
Employees shall not work on scaffolds during storms or high winds.
1910.28(a)(19)
Employees shall not work on scaffolds which are covered with ice or snow, unless all ice or snow is removed and planking sanded to prevent slipping.
1910.28(a)(20)
Tools, materials, and debris shall not be allowed to accumulate in quantities to cause a hazard.