Excavation's Competent Person Is Designated at the Site. Corporate's Org Chart Assigns the Role by Title.

A multi-site contractor or facilities operator running excavation work at several locations at once will often solve the competent person requirement the way it solves most cross-site staffing questions: identify who holds the role, put their name on a form, and treat the requirement as satisfied everywhere that person's name appears. It is an efficient answer to the wrong question. OSHA's excavation standard does not ask who is qualified to be a competent person in the abstract. It asks who can evaluate the soil, the shoring, and the conditions at this excavation, today, and that is a determination that resets at every site boundary regardless of how many other trenches the same person has correctly evaluated elsewhere.

29 CFR 1926.650(b) defines a competent person as someone capable of identifying existing and predictable hazards in the surroundings or working conditions, and who has authorization to take prompt corrective measures to eliminate them. 1926.651(k)(1) requires daily inspections of excavations, adjacent areas, and protective systems by a competent person, for evidence of a situation that could result in possible cave-ins, indications of failure of protective systems, hazardous atmospheres, or other hazardous conditions. Nothing in the definition or the inspection requirement is satisfied by a person's general competence. It is satisfied by that person's evaluation of the specific soil, slope, water conditions, and protective system in front of them, which means the designation is inseparable from the site.

Soil classification is why the role can't travel with the person

The excavation standard's protective system requirements — sloping, benching, shoring, or shielding — are all keyed to soil classification under Appendix A, which sorts soil into Type A, B, or C based on unconfined compressive strength, cohesion, and other properties that a competent person determines through visual and manual tests at the excavation itself. The same individual, competent and experienced, will classify soil differently at a site with stiff clay than at a site with previously disturbed fill or a site near a water table, because the soil is different. A competent person's judgment from one site does not transfer to another site's soil any more than a structural engineer's calculation for one building transfers to a different building on a different foundation.

This creates a specific portfolio-level failure: a corporate safety function that maintains a roster of "designated competent persons" by name and credential, without a parallel record of which specific excavation each designation was exercised on and what soil and site conditions were evaluated, has documented that qualified people exist in the organization. It has not documented that the daily inspection requirement was met at any particular trench, because the requirement is about the evaluation performed, not the title held by the person who could have performed it.

A credential earned once does not certify a person for every site's conditions

OSHA does not certify competent persons, and there is no portable card or registration number a multi-site operator can check the way it might check a crane operator certification. Competence under the standard is demonstrated through training, knowledge, and experience, and OSHA's enforcement approach evaluates it based on the specific hazards the person is expected to identify at the excavation in question — knowledge of soil analysis, protective systems, and the particular hazards of that excavation. A person who has correctly performed this evaluation at dozens of sites with similar soil and depth conditions can still be assigned to a site with unfamiliar groundwater conditions, adjacent structure loading, or utility congestion that falls outside what their prior experience actually covered, and the standard's requirement is unmet at that location regardless of the person's overall track record.

This is where a portfolio's training investment and its compliance exposure can diverge. Training a cohort of competent persons to a high standard, then deploying them across dissimilar site types without confirming that the specific conditions at each new assignment fall within what their experience prepared them for, produces people who are competent in general and unverified at the specific site where the daily inspection requirement actually applies.

Subcontracted excavation work adds a layer corporate rosters don't cover

A significant share of multi-site excavation work is performed by subcontractors rather than the operator's own crews, and the competent person requirement doesn't relax because the trench belongs to a subcontractor's scope. 1926.651(k)(1) attaches to the excavation, not to the employer relationship, and a general contractor or site owner who has confirmed a subcontractor's competent person credential once, at the start of a master services agreement, has not confirmed that the same evaluation happens at every subsequent excavation that subcontractor opens across the portfolio. Multi-employer worksite doctrine means a general contractor with knowledge of an unsafe excavation can be cited even where a subcontractor performed the digging, which makes it a genuine exposure for the site owner or GC's own compliance program, not merely the subcontractor's problem to manage. A prequalification file showing a subcontractor's competent person roster is a reasonable starting point, but it answers the same wrong question a corporate employee roster does: it shows qualified people exist somewhere in the subcontractor's organization, not that one of them evaluated this excavation, at this site, today.

Protective systems compound the same problem

Sloping and benching requirements under 1926.652 are calculated to the soil type present, and shoring or shield systems have to be selected and installed according to tabulated data or engineered design specific to the excavation's depth, soil classification, and surface conditions. A protective system design that was correct for one site's Type B soil at eight feet does not transfer to another site's excavation even at the same nominal depth, if that site's soil classifies differently. A corporate standard specifying a default protective system — "use a trench box rated to X depth" — can be adequate at sites where the soil happens to match the assumption behind that default and inadequate at sites where it does not, and the gap is invisible at the portfolio level unless someone is tracking soil classification by site rather than assuming a single protective system specification covers the operation.

What a multi-site operator can verify without changing who does the work

None of this means an organization has to train an independent competent person for every site from scratch, or that experience gained at one location is worthless elsewhere — a person who has correctly classified soil and selected protective systems across a range of conditions is genuinely better prepared than one who hasn't. What it means is that the record a portfolio keeps has to track the evaluation, not just the credential: which competent person inspected which excavation, on which date, what soil classification they determined, and what protective system that classification called for. A tracking system built around "who is a qualified competent person in our workforce" answers a training question. A tracking system built around "which excavation received a documented daily inspection, by whom, with what soil classification recorded" answers the compliance question 1926.651(k)(1) actually asks, and it is the second one that holds up when an inspector or an incident investigator asks not whether the organization employs competent people, but whether this trench, on this day, was evaluated by one.