A maintenance crew erecting structural steel and a crew doing routine facility work face two different fall protection thresholds — and using the wrong one is a common citation. General industry vs. construction fall protection rules, and when each applies.
4 feet or 6 feet? Manufacturers who split time between general
industry facilities and construction sites often apply the wrong
threshold entirely — general industry triggers fall protection at 4
feet, construction at 6, and the two standards aren’t interchangeable
just because both involve working at height.
| Standard | Applies to | Height trigger |
|---|---|---|
| 29 CFR 1910.28 | General industry (most manufacturing facilities) | 4 feet or more above a lower level |
| 29 CFR 1926.501 | Construction work | 6 feet or more above a lower level |
A manufacturer with an in-house maintenance crew that also does
occasional construction-type work — building an addition, erecting
structural steel — needs to recognize which standard actually applies
to that specific task, since the two thresholds genuinely differ.
Both standards accept the same basic family of protection methods:
guardrail systems, safety net systems, and personal fall arrest
systems, with 1910.28 also recognizing travel restraint and positioning
systems for certain applications. Under 1910.28, holes, hoist areas,
dockboards, runways, and areas around dangerous equipment all trigger
protection requirements starting at 4 feet — even indoor platforms and
mezzanines most people wouldn’t immediately think of as a “fall
hazard.”
Even below the 4-foot trigger, 1910.28 still requires protecting
employees from tripping into holes, typically through covers or
guardrail systems — a requirement that’s easy to overlook since it
doesn’t involve a dramatic height. A floor-level hole covered
inadequately is still a citable gap, regardless of how far someone
could actually fall.
Fixed ladders exceeding 24 feet require a personal fall arrest
system or a ladder safety system — a specific, numeric trigger that
applies to permanently installed ladders on tanks, silos, and elevated
platforms throughout a typical manufacturing facility. It’s a detail
easy to miss during a general facility safety review that focuses on
more obvious hazards like open platform edges.
Fall protection program administration isn’t a standalone course in
SCMEP’s current catalog — it fits within our broader
safety culture and plant safety event programs.
As a NIST Manufacturing Extension Partnership
affiliate serving South Carolina manufacturers since 1989, our
focus is building daily hazard-awareness habits that support a
compliant fall protection program, including catching often-missed
triggers like fixed ladders and floor-level holes.
If your plant needs a fall protection program review, you can
browse the Safety training catalog or email
the training
team.
Under 29 CFR 1910.28 (general industry), fall protection is required at 4 feet or more above a lower level. Construction work falls under a separate standard, 29 CFR 1926.501, which triggers at 6 feet.
Guardrail systems, safety net systems, and personal fall arrest systems are accepted under both standards. General industry (1910.28) also recognizes travel restraint and positioning systems for certain applications.
Fixed ladders exceeding 24 feet require a personal fall arrest system or a ladder safety system under 1910.28 — a specific, often-overlooked trigger for permanently installed ladders on tanks, silos, and elevated platforms.
Yes, in specific cases. Even below 4 feet, employees must be protected from tripping into holes through covers or guardrail systems, regardless of how far someone could actually fall.
