Climbing harnesses: the four types and what the standard tests.

The standard

The current European harness standard is EN 12277:2015+A1:2018, "Mountaineering equipment - Harnesses - Safety requirements and test methods". The Estonian standards body lists the consolidated version as valid from 3 January 2019. National listings describe it as covering harnesses for mountaineering, including climbing. The UIAA's matching standard is UIAA 105, at version 4 (2018). Edelrid, a maker, says UIAA 105 contains no requirements worth mentioning beyond the EN standard; that is Edelrid's assessment.

The European Commission's PPE guidelines (5th edition, October 2025) name harnesses for mountaineering as an example of personal protective equipment used in sport and leisure, which places them under Regulation (EU) 2016/425. The standards and markings page explains what that means for the CE mark.

The four harness types

SATRA, a UIAA-accredited test laboratory, summarises EN 12277:2015+A1:2018 as defining four types. Edelrid's summary of the standard describes each one:

EN 12277 states that a Type D chest harness is only for use together with a Type C sit harness, and the harness label must say that Type D is not to be used on its own. Beal's 2019 sport harness notice shows how a maker applies the letters to its own range: Type C for its climbing sit harnesses, Type B for its child full-body harness and Type D for its chest harness.

What the laboratory tests check

SATRA's summary describes these requirements in EN 12277:

• Construction. Load-bearing straps must meet minimum widths that depend on the harness type and where the strap sits on the body. Stitching must contrast with the webbing in colour or surface, and no component may have sharp edges or burrs.
• Static strength. The complete harness is fitted to a test dummy and loaded at each attachment point, upward at 15 kN or 10 kN and downward at 10 kN or 7 kN depending on the type, with each load held for roughly 1 to 3 minutes.
• Buckle slippage. After the strength tests, straps may slip through buckles by no more than 20 mm.

Edelrid's summary adds the pass criteria that no load-bearing part tears and the dummy is not released. These loads are what a new sample must withstand in the laboratory. The UIAA, in an undated foreword to its inspection recommendations, notes that a standard sets a baseline tested on new equipment, and that field conditions and the state of the gear matter just as much.

What a harness label must show

As Edelrid summarises EN 12277, a harness must be marked with:

• The maker and the year of manufacture.
• EN 12277 and the harness type.
• How the fastening and adjustment devices work.
• For Type D, the warning that it is not a stand-alone harness.
• A reference to the user manual.
• The size, and for Type B the weight range as well.
• The CE mark with the four-digit number of the notified body.

Beal's 2019 notice, for example, names APAVE Sudeurope (0082) and VVUU Ostrava (1019) for EU type-examination, SGS United Kingdom (0120) and SGS Fimko (0598) as the notified bodies shown after the CE mark, and says the last two digits of its serial number give the year of manufacture.

Lifespan: what makers say

Under Regulation (EU) 2016/425, makers must state a period of obsolescence where one applies. The Commission's guidelines (October 2025) give "harness after fall" as an example of obsolescence set by an incident rather than a date. Makers' own statements differ:

• Beal (2019 notice) says a harness may be stored up to 5 years before first use and has a potential lifetime in use of 10 years, with 15 years as the total. It stresses that this is only a potential figure and that inspections decide earlier retirement. It lists a heavy fall even without visible damage, damaged webbing or stitching, buckles not working well, contact with harmful chemicals, or any other doubt as reasons to retire a harness. It gives 80 C as a temperature harness storage or use must not exceed.
• Petzl is quoted in search snippets of a 24 January 2018 article as giving 10 years as the maximum life of its plastic and textile products. The page did not open for our research, so this is unconfirmed.
• Black Diamond is credited in search snippets, without a date, with a harness life expectancy of about three years depending on use, and retirement after ten years even if properly stored. We could not confirm these figures on a Black Diamond page, so they are unconfirmed.

Beal's own documents differ on one detail: the 2019 harness notice gives 215 C as the melting point of polyamide, while its 2014 rope document gives 230 C. The difference may come from different grades of polyamide, but that is not confirmed.

Each figure above is the named maker's statement for its own products, not a rule for all harnesses. The maker's instructions and a competent person decide when a particular harness is retired. The gear lifespan page compares makers' statements across all gear.

Recent harness recalls

• The UIAA relayed on 28 February 2025 a recall by Black Diamond Equipment Europe of the Black Diamond Vision Harness (style BD651096), all sizes made and sold from 1 January 2018 to 26 February 2025, which the maker linked to premature degradation of its materials and construction.
• Health Canada published on 14 May 2026 a recall of certain Petzl SIMBA and SWAN full-body harnesses sold from July 2021 to November 2025, because a missing rivet in the buckle could let it open. It reported no incidents in Canada or the US as of 13 May 2026.

The recalls page lists these with the other published notices. The maker's own current notice is the authority on whether a product is affected.