The safety harness expiration date is not set by OSHA. Federal fall protection rules in 29 CFR 1910.140 and 29 CFR 1926.502 contain no calendar deadline for retiring a harness.1Occupational Safety and Health Administration. 29 CFR 1910.140 – Personal Fall Protection Systems Instead, the harness comes out of service when one of three things happens: the manufacturer’s stated service life ends, a pre-shift inspection turns up damage, or the harness is subjected to impact loading in a fall. Whichever comes first is your expiration date.
The Manufacturer Sets the Service Life
Because OSHA does not name a number, the practical shelf life of your harness is whatever the manufacturer prints in the user manual or technical data sheet. Most major manufacturers set service life between five and ten years from the date of manufacture, assuming the equipment passes inspections along the way. Some shorten that window for harnesses used in harsh environments like chemical plants or offshore platforms. The manual for your specific model is the only source that gives you the correct number.
That figure is enforceable in practice. OSHA’s training rules require employers to follow the manufacturer’s instructions for care, inspection, and storage, so ignoring the stated service life is treated as a compliance failure, not just a policy choice.2Occupational Safety and Health Administration. 29 CFR 1910.30 – Training Requirements
Finding the Date of Manufacture
To apply the service life, you need to know when the harness was built. The date of manufacture is printed on an identification label sewn into the webbing, usually in a protective sleeve or near the dorsal D-ring on the back panel. The same label carries a serial number tying the harness to a production batch. These marking conventions come from the ANSI/ASSP Z359.11 consensus standard rather than from OSHA itself, but the effect is the same: if the label is unreadable, you cannot verify the harness is within its service life, and most safety managers retire it on that basis alone.
Condition Can Force Retirement Before the Service Life Ends
OSHA requires that fall protection equipment be inspected for wear, damage, mildew, and deterioration before initial use during each work shift, and any defective component must be pulled from service immediately.1Occupational Safety and Health Administration. 29 CFR 1910.140 – Personal Fall Protection Systems A harness three months old with real damage is more dangerous than a well-kept one nearing the end of its rated life, so condition overrides age.
The findings that force immediate retirement, regardless of the date on the label:
- Frayed or fuzzy webbing, which indicates the internal load-bearing yarns are breaking.
- Broken or pulled stitches, especially at D-ring attachment points and leg strap junctions where arrest loads concentrate.
- Heat damage from welding sparks, molten metal, or high-temperature equipment, including any burn or melted spot on the webbing.
- Chemical exposure, shown by discoloration, a stiff or brittle texture, or an unusual smell in the webbing, or hidden corrosion in hardware exposed to acids or caustics.
- Corroded or deformed hardware: pitting on buckles, cracks in D-rings, or adjustment slides that no longer hold position.
Any one of these is enough. The daily check is the worker’s responsibility. Many manufacturers also require a more thorough annual inspection by a competent person as a condition of the harness remaining within its rated service life. OSHA defines the competent person as someone who can identify existing and predictable fall hazards and has authority to correct them.1Occupational Safety and Health Administration. 29 CFR 1910.140 – Personal Fall Protection Systems
A Fall Ends the Harness
Both the general industry and construction standards require that any fall protection system subjected to impact loading be removed from service immediately. The regulation stops short of saying the harness must be destroyed; it says the equipment cannot be used again for worker protection until a competent person inspects it and determines it is undamaged and suitable for reuse.3eCFR. 29 CFR 1926.502 – Fall Protection Systems Criteria and Practices
In practice, most employers retire a harness permanently after a fall, and most manufacturers explicitly instruct that a fall-arrested harness be destroyed. Arrest forces cause microscopic changes in the synthetic fibers that visual inspection may miss. Many modern harnesses include built-in load indicators near the dorsal D-ring, typically stitched loops or fabric tabs that tear apart or expose colored material when the harness has absorbed a significant load. Once one of these indicators deploys, the harness is done.
Storage Affects How Long a Harness Actually Lasts
The rated service life assumes reasonable care. Synthetic webbing degrades when exposed to ultraviolet light even when the harness is not being worn, so a unit left hanging in direct sunlight will fade and weaken faster than one kept in a cabinet or gear bag. Significant fading is itself a sign that UV damage has reached the fibers.
Damp storage promotes mildew, which 1910.140(c)(18) lists specifically among the conditions to check for during pre-shift inspections.1Occupational Safety and Health Administration. 29 CFR 1910.140 – Personal Fall Protection Systems Store harnesses in a clean, dry, temperature-controlled space, away from sunlight, chemicals, and sharp edges. Hanging them or laying them flat in a bag preserves the hardware better than cramming them into a toolbox where buckles and D-rings can bend or scrape.
What It Costs to Ignore the Service Life
When a compliance officer finds a harness in use past its manufacturer-stated service life, the typical result is a serious violation citation. As of January 2025, a serious violation carries a penalty of up to $16,550. Willful or repeated violations can reach $165,514 per instance.4Occupational Safety and Health Administration. OSHA Penalties Those figures are adjusted annually for inflation.
Retiring the Harness
Once a harness is retired for any reason, physically destroy it before disposal so no one can accidentally put it back into use. Cut the main shoulder and leg straps into several pieces with heavy shears, and cut through or remove the D-rings so the harness cannot be reassembled. On shared job sites where equipment moves between crews and shifts, an intact retired harness sitting in a storage room is a genuine hazard.
Update your equipment log with the serial number, the retirement date, and the reason: aged out under the manufacturer’s service life, failed inspection, or involved in a fall. OSHA does not explicitly require this log, but it provides the paper trail that demonstrates the service life was tracked and respected if the equipment is ever tied to an incident or reviewed during an audit.