ANSI/ASSP A10.28:2018

1. Scope
1.1 Application
1.2 General Requirements
1.3 Critical Lift Plan
2. Definitions
3. Crane and Derrick Criteria
3.1 Live Booms
3.2 Load Line
3.3 Swing Brake or Lock
3.4 Weight Limitations
3.5 Boom Angle Indicator
3.6 Load Radius Indicator
3.7 Level Grade
3.8 Outriggers
3.9 Two-Blocking Prevention
3.10 Crane Manufacturers’ Recommendations
4. Crane and Derrick Inspection
4.1 Components
4.2 Frequency
4.3 Repair Requirements
5. Suspended Work Platform Design
5.1 Approval
5.2 Minimum Safety Design Factor
5.3 Capacity Identification
5.4 Access Gate
5.5 Overhead Protection
5.6 Perimeter Protection
5.7 Fall Protection
5.8 Grab Rail
5.9 Stability
5.10 Access Height
6. Suspended Work Platform Construction
6.1 Edges
6.2 Weld Inspection
6.3 Welding Competence
6.4 Attachment Points
7. Suspended Work Platform Testing and Inspection
7.1 Frequency of Inspection
7.2 Proof Testing
7.3 Trial Lift
8. Rigging
8.1 Distribution of Loads
8.2 Limitations
9. Suspended Work Platform Loading
9.1 Use
9.2 Attachment
9.3 Capacity
9.4 Positive Connection
10. Personal Protective Equipment
10.1 General
10.2 Personal Fall Arrest Equipment
11. Signaling and Communications
11.1 Positioning
11.2 Positive Means
12. Safe Work Practices
12.1 Working from Suspended Platforms
12.2 Number of Personnel
12.3 Operating Ability
12.4 Setting Brakes and Locks
12.5 Operator Positioning
12.6 Outriggers
12.7 Personnel Positioning
12.8 Securing Suspended Platform
12.9 Tag Lines
12.10 Travel
12.11 Weather
12.12 Training
12.13 Maintenance
12.14 Pre-Lift Meeting

This standard applies to platforms suspended from the load lines of cranes or derricks in order to: 1. perform work at elevations that cannot be reached in a safe manner by other types of scaffolds or aerial work platforms; or 2. transport personnel to elevations where other means of access are unsafe or impractical because of design or worksite conditions.