29 CFR 1926.1404: Assembly/Disassembly—general requirements (applies to all assembly and disassembly operations)
The official text is on the eCFR. This page maps how the section is organized, quotes the paragraphs our CHST practice questions are built on, and gives free questions you can try. Text below is quoted from the eCFR, current as of 2026-10-14; the section was last amended 2017-11-09.
How 29 CFR 1926.1404 is organized
- (a) Supervision—competent-qualified person2 paragraphs
- (b) Knowledge of procedures1 paragraph
- (c) Review of procedures1 paragraph
- (d) Crew instructions5 paragraphs
- (e)2 paragraphs
- (f) Working under the boom, jib or other components2 paragraphs
- (g) Capacity limits1 paragraph
- (h) Addressing specific hazards16 paragraphs
- (i)1 paragraph
- (j) Cantilevered boom sections1 paragraph
- (k) Weight of components1 paragraph
- (l)1 paragraph
- (m) Components and configuration4 paragraphs
- (n)1 paragraph
- (o) Shipping pins1 paragraph
- (p) Pile driving1 paragraph
- (q) Outriggers and stabilizers9 paragraphs
- (r) Rigging5 paragraphs
Paragraphs our practice questions cite most
Counted across the 6 live PassCited questions built on this section. This reflects our question bank, not the real exam.
“(10) Boom hoist brake failure. Each time reliance is to be placed on the boom hoist brake to prevent boom movement during assembly/disassembly, the brake must be tested prior to such reliance to determine if it is sufficient to prevent boom movement. If it is not sufficient, a boom hoist pawl, other locking device/back-up braking device, or another method of preventing dangerous movement of the boom (such as blocking or using an assist crane) from a boom hoist brake failure must be used.”
“(2) Synthetic slings are protected from: Abrasive, sharp or acute edges, and configurations that could cause a reduction of the sling's rated capacity, such as distortion or localized compression.”
“(ii) Where there is insufficient information to accurately identify the center of gravity, measures designed to prevent unintended dangerous movement resulting from an inaccurate identification of the center of gravity must be used. (See Non-mandatory appendix B of this subpart for an example.)”
“(3) When synthetic slings are used, the synthetic sling manufacturer's instructions, limitations, specifications and recommendations must be followed.”
Free practice questions on 29 CFR 1926.1404
Question 1
During crane disassembly, a rigger plans to choke a synthetic sling around a steel component with a sharp, unprotected corner. The sling's rated capacity is well above the component's weight. What does the standard require regarding the sling?
Show answer and source
Answer: A. The sling must be protected from abrasive, sharp or acute edges and from configurations such as distortion or localized compression that reduce its rated capacity
The standard requires synthetic slings to be protected from sharp or acute edges and from configurations that could reduce rated capacity. A margin between load and rated capacity does not excuse the lack of protection, and lifting slowly is not a permitted alternative.
Answer A rests on
29 CFR 1926.1404(r)(2)(opens ecfr.gov in a new tab)“Synthetic slings are protected from: Abrasive, sharp or acute edges, and configurations that could cause a reduction of the sling's rated capacity, such as distortion or localized compression.”
Question 2
A rigging supervisor is selecting synthetic slings for crane assembly. The site's general rigging practice sheet allows a higher temperature exposure than the sling manufacturer's literature does. Which source must be followed for the synthetic sling's use?
Show answer and source
Answer: D. The synthetic sling manufacturer's instructions, limitations, specifications and recommendations
When synthetic slings are used, the standard requires following the sling manufacturer's instructions, limitations, specifications and recommendations. A site sheet, operator judgment, or choosing the less restrictive limit does not replace that requirement.
Answer D rests on
29 CFR 1926.1404(r)(3)(opens ecfr.gov in a new tab)“When synthetic slings are used, the synthetic sling manufacturer's instructions, limitations, specifications and recommendations must be followed.”
Question 3
During crane disassembly, a qualified rigger plans to choke a synthetic round sling around a boom section that has sharp, unpadded steel corners. The boom section weighs well under the sling's rated capacity. What must the employer ensure before the lift?
Show answer and source
Answer: D. The sling is protected from the sharp edges, for example with edge protection, before the lift proceeds
The standard requires synthetic slings to be protected from abrasive, sharp or acute edges during assembly/disassembly rigging, regardless of how the load compares to rated capacity. Having a qualified rigger or inspecting afterward does not replace protecting the sling before the lift.
Answer D rests on
29 CFR 1926.1404(r)(2)(opens ecfr.gov in a new tab)“(2) Synthetic slings are protected from: Abrasive, sharp or acute edges, and configurations that could cause a reduction of the sling's rated capacity, such as distortion or localized compression.”
Where it shows up in exam prep
Find out which regulations you'd miss
Other Part 1926 sections
This is a study aid, not legal advice or an official interpretation. Always check the current eCFR text. Original practice questions, not real exam items. PassCited is not affiliated with or endorsed by BCSP.