OSHA 1910.28 Fall Protection Requirements for Commercial Facilities
For commercial building owners and facility managers, OSHA 1910.28 is one of the most important regulations in the Walking-Working Surfaces standard.
The rule answers a fundamental question:
When does an employer have to protect a worker from falling?
Under OSHA 1910.28, employers must provide protection for employees exposed to fall hazards and falling-object hazards. Unless another provision says otherwise, the required systems generally must meet the criteria in 1910.29, while personal fall-protection systems must meet 1910.140.
For commercial properties, this can involve much more than a roof edge. OSHA 1910.28 addresses hazards involving:
- Unprotected sides and edges
- Holes and skylights
- Ladderway openings
- Stairways
- Fixed ladders
- Runways and walkways
- Dangerous equipment
- Rope descent systems
- Low-slope roofs
- Falling objects
Understanding the rule requires looking at the building as a complete access and fall-protection system rather than focusing on one piece of equipment.
What Is OSHA 1910.28?
OSHA 1910.28 is titled Duty to Have Fall Protection and Falling Object Protection.
It is part of 29 CFR 1910 Subpart D — Walking-Working Surfaces.
The general rule is that an employer must provide protection for each employee exposed to fall and falling-object hazards. OSHA then establishes specific requirements based on the type of surface or hazard.
For a commercial building, that might mean different protection systems in different locations.
A worker servicing HVAC equipment near a roof edge may need one form of protection.
A worker climbing a fixed ladder may need another.
A contractor approaching a skylight, hatch, or floor opening may require something different again.
That is why fall protection should begin with a hazard assessment rather than choosing equipment first.
OSHA’s 4-Foot Fall Protection Rule
One of the most important thresholds in general industry is 4 feet.
Except where OSHA provides a different rule, an employee on a walking-working surface with an unprotected side or edge 4 feet or more above a lower level must be protected by one or more of the following:
- Guardrail system
- Safety net system
- Personal fall-protection system, such as personal fall arrest, travel restraint, or positioning
This is a critical distinction because people often assume OSHA’s fall-protection threshold is universally 6 feet.
That six-foot threshold is commonly associated with construction regulations. For many general-industry walking-working surfaces, the threshold is 4 feet.
For building owners and facility managers maintaining occupied commercial properties, this is usually the more relevant framework.
What Is an Unprotected Side or Edge?
OSHA defines an unprotected side or edge as a side or edge of a walking-working surface where there is no wall, guardrail system or stair rail system to protect an employee from falling to a lower level.
On a commercial rooftop, these areas may include:
- Roof perimeters
- Mechanical platforms
- Elevated walkways
- Loading areas
- Unprotected mezzanine edges
- Equipment platforms
The important question is not simply whether a worker is “on a roof.”
The question is whether the employee is exposed to a qualifying fall hazard while performing the work.
OSHA Requirements for Holes and Skylights
OSHA treats holes as a significant fall hazard.
Employees must be protected from falling through any hole—including a skylight—that is 4 feet or more above a lower level.
Acceptable protection can include:
- Covers
- Guardrail systems
- Travel restraint systems
- Personal fall arrest systems
OSHA separately requires protection against stepping or tripping into holes that are less than 4 feet above a lower level.
This makes skylights especially important during rooftop assessments.
A skylight may appear solid while still representing a fall-through hazard. Facility managers shouldn’t assume that the glazing itself provides OSHA-compliant fall protection.
Ladderway and Roof Hatch Protection
Commercial rooftops frequently use fixed ladders and roof hatches for access.
OSHA requires employees to be protected from falling into ladderway floor holes and ladderway platform holes using guardrail systems and toeboards on exposed sides, with a self-closing gate or offset at the entrance.
This is an area where facilities often have a disconnect.
The fixed ladder itself may be acceptable, but when the employee reaches the top, the hatch or landing can create a separate fall hazard.
A complete assessment should therefore look at:
ladder → hatch → landing → rooftop route → work area
not just the ladder.
OSHA 1910.28 and Fixed Ladders Over 24 Feet
Fixed ladders extending more than 24 feet above a lower level are subject to specific fall-protection requirements.
OSHA’s requirements depend partly on when the ladder was installed.
For existing ladders installed before November 19, 2018, OSHA allows certain systems including personal fall arrest systems, ladder safety systems, cages, or wells during the transition period.
For new fixed ladders installed on or after November 19, 2018, the ladder must be equipped with a personal fall arrest system or ladder safety system.
OSHA also established a final transition date:
On and after November 18, 2036, all fixed ladders covered by this provision must be equipped with a personal fall arrest system or ladder safety system.
For property owners with older caged ladders, this is an important capital-planning issue.
Waiting until 2036 to inventory and upgrade an entire building portfolio is not a practical strategy.
OSHA Fall Protection for Stairways
Stairways are governed partly by OSHA 1910.25, but 1910.28 establishes important fall-protection requirements.
An employee exposed to an unprotected side or edge of a stairway landing 4 feet or more above a lower level must be protected by a guardrail or stair rail system.
OSHA also establishes stair rail and handrail requirements based on:
- Number of treads and risers
- Stair width
- Whether one or both sides are open
- Whether the stair is enclosed
This is why stairway compliance needs to be evaluated together with both 1910.25 and 1910.28, not one standard in isolation.
Rope Descent Systems and OSHA 1910.28
OSHA 1910.28 also directly addresses rope descent systems.
Each employee using a rope descent system 4 feet or more above a lower level must be protected from falling by a personal fall arrest system.
This is highly relevant to commercial properties using rope descent systems for façade access, window washing, inspection, or maintenance.
But this is only one piece of the requirement.
Rope descent systems also intersect with 1910.27, which addresses anchorage and system-use requirements.
For building owners, the practical takeaway is that suspended access should be evaluated as a complete system:
- Anchorages
- Rope descent equipment
- Independent fall arrest
- Documentation
- Inspection
- Worker access
- Rescue planning
OSHA 1910.28 and Low-Slope Roofs
Low-slope roofs are especially relevant for commercial buildings because so many warehouses, hospitals, offices, manufacturing facilities and institutional buildings have flat or nearly flat roofs.
OSHA 1910.28 includes specific rules for employees working on low-slope roofs.
The requirements depend in part on how far the employee is working from the roof edge and whether the work is temporary, infrequent, or ongoing.
This is where simplistic statements like:
“We’re more than 6 feet from the edge, so we’re fine.”
can become dangerous.
The exact requirements depend on the work location and circumstances.
Facility managers should evaluate:
- Distance from roof edge
- Frequency of access
- Duration of work
- Type of work
- Existing guardrails
- Existing anchors
- Lifeline systems
- Designated areas where permitted
A fall hazard assessment can determine which approach is appropriate.
Guardrails vs. Personal Fall Protection
One of the biggest mistakes in rooftop planning is assuming every hazard requires a roof anchor and harness.
It doesn’t.
OSHA allows multiple methods depending on the situation.
For example, an unprotected edge may be addressed by:
- Guardrail systems
- Safety net systems
- Personal fall-protection systems
For commercial buildings, permanent guardrails can sometimes be the most practical solution around areas that maintenance employees access frequently.
In other situations, roof anchors and travel-restraint systems may provide greater flexibility.
Horizontal lifelines may be appropriate where workers need to move across a larger work area.
There is no universal answer.
The correct system should be selected based on the hazard and how workers actually use the roof.
Travel Restraint vs. Personal Fall Arrest
These terms are often used interchangeably, but they solve different problems.
Travel restraint is designed to prevent the worker from reaching the fall hazard.
Personal fall arrest allows a fall to begin but arrests the worker before impact with a lower level.
From a risk-management perspective, preventing the fall is generally preferable when feasible.
For example, an anchor and properly configured restraint system may allow an HVAC technician to work while physically preventing access to the roof edge.
If the system allows the technician to reach and pass the edge, different fall-arrest design considerations apply.
That can affect:
- Anchor location
- Connector length
- Clearance
- Swing-fall exposure
- Rescue planning
OSHA 1910.28 and Dangerous Equipment
Fall hazards don’t always require a four-foot drop.
OSHA specifically addresses employees working above dangerous equipment.
An employee less than 4 feet above dangerous equipment must be protected from falling into or onto that equipment by a guardrail or travel-restraint system unless the equipment itself is covered or guarded to eliminate the hazard.
At 4 feet or more, OSHA permits guardrails, safety nets, travel restraint, or personal fall arrest systems.
This can be highly relevant in:
- Manufacturing facilities
- Industrial plants
- Mechanical rooms
- Processing facilities
- Warehouses
The potential injury comes not only from the fall distance but from what the worker could fall onto.
Why Commercial Rooftop Fall Protection Needs to Be Designed as a System
Imagine a technician servicing rooftop mechanical equipment.
The worker:
- Climbs a fixed ladder.
- Opens a hatch.
- Steps onto the roof.
- Walks 150 feet across the building.
- Passes several skylights.
- Reaches an HVAC unit 5 feet from the roof edge.
There may be multiple OSHA considerations within that one maintenance task.
The fixed ladder may be governed by 1910.23 and 1910.28.
The hatch may create an opening hazard.
The skylights may constitute holes.
The roof edge may trigger the four-foot rule.
The eventual protection system may need to satisfy 1910.29 or 1910.140.
That is why simply installing one roof anchor doesn’t automatically make a rooftop compliant.
Common Fall-Protection Problems We See on Commercial Buildings
Anchors without a complete access plan
The building may have anchors, but workers have no protected method of reaching them.
Rooftop equipment added after the original design
New HVAC units, solar arrays or communication equipment can change worker travel paths.
Skylights overlooked during inspections
Roof edges often receive attention while fall-through hazards do not.
Old ladder cages treated as a permanent solution
Existing ladder systems need to be evaluated against OSHA’s fixed-ladder transition requirements.
Workers attaching to systems without current documentation
Fall protection is not simply the presence of hardware. System condition, inspection and appropriate use matter.
Contractors improvising tie-off locations
Piping, equipment supports or other rooftop structures should not automatically be assumed to be approved anchorage points.
OSHA 1910.28 and the Rest of Subpart D
OSHA 1910.28 works together with several other standards:
- 1910.22 — Walking-Working Surface General Requirements
- 1910.23 — Ladders
- 1910.25 — Stairways
- 1910.27 — Scaffolds and Rope Descent Systems
- 1910.28 — Duty to Have Fall Protection
- 1910.29 — Fall Protection System Criteria
- 1910.30 — Training Requirements
For commercial property teams, the important distinction is:
1910.28 tells you when protection is required.
1910.29 tells you how many of those systems must perform.
1910.140 contains requirements for personal fall-protection systems.
That structure makes it much easier to understand the regulations.
How Facility Managers Should Approach OSHA 1910.28
Instead of beginning with equipment, start with the work.
Step 1: Identify who goes onto the roof
That can include:
- HVAC technicians
- Roofers
- Electricians
- Engineers
- Window-cleaning contractors
- Solar contractors
- Telecommunications contractors
- Building maintenance personnel
Step 2: Identify where they go
Map the actual travel path from the access point to each work area.
Step 3: Identify fall hazards
Look for:
- Roof edges
- Skylights
- Openings
- Hatches
- Elevated platforms
- Ladder transitions
- Dangerous equipment
Step 4: Evaluate existing protection
Document:
- Guardrails
- Roof anchors
- Horizontal lifelines
- Ladder safety systems
- Covers
- Travel-restraint systems
- Personal fall-arrest systems
Step 5: Correct the gaps
The goal should be a coordinated fall-protection strategy rather than a collection of isolated products.
How Shine On Anchors Helps
Shine On Anchors specializes in commercial fall protection and rooftop access systems.
Our services include:
- Fall hazard assessments
- Roof anchor installation
- Roof anchor inspections
- Roof anchor certification
- Roof anchor load testing
- Horizontal lifeline systems
- Fixed ladder fall protection
- Guardrail systems
- Rope access systems
- Custom-engineered fall protection
For commercial building owners, our objective is to identify how workers actually use the building and then design fall-protection solutions around those real maintenance activities.
Frequently Asked Questions About OSHA 1910.28
At what height does OSHA require fall protection in general industry?
Except where another provision applies, OSHA 1910.28 generally requires protection when an employee is on a walking-working surface with an unprotected side or edge 4 feet or more above a lower level.
Do skylights count as fall hazards?
Yes. OSHA treats holes, including skylights, as potential fall hazards. When the hole is 4 feet or more above a lower level, employees must be protected using an allowable system such as a cover, guardrail, travel restraint, or personal fall arrest.
Are ladder cages being eliminated?
OSHA’s transition rules ultimately require covered fixed ladders over 24 feet to use a personal fall-arrest system or ladder safety system. The final transition date is November 18, 2036.
Does OSHA 1910.28 cover rope descent systems?
Yes. OSHA requires employees using rope descent systems 4 feet or more above a lower level to be protected by a personal fall-arrest system. Rope descent systems are also subject to related requirements elsewhere in Subpart D.
Is OSHA's fall-protection height always 4 feet?
No. Different standards and situations can establish different requirements. The 4-foot threshold is the general-industry rule for many walking-working surfaces under 1910.28, but specific hazards and standards may differ.
When does a fixed ladder require fall protection?
OSHA 1910.28 contains specific requirements for fixed ladders extending more than 24 feet above a lower level. Requirements depend partly on the ladder’s installation date and configuration.
Does a roof anchor automatically make a rooftop OSHA compliant?
No. A rooftop safety program must consider the worker’s entire access and work path, including ladders, hatches, skylights, edges, anchor location, system compatibility and how the work is performed.
Does Your Commercial Rooftop Meet OSHA Fall-Protection Requirements?
Shine On Anchors helps commercial facilities identify fall hazards and design practical rooftop safety systems including roof anchors, horizontal lifelines, fixed ladder systems and guardrails.
Contact Shine On Anchors to schedule a commercial fall hazard assessment or discuss your building’s fall-protection requirements.
Call us at (773) 227-4522 or email anchors@shineongroup.com

