{ "source": "Cooked Index — occupational AI risk register", "page": "https://cookedindex.com/jobs/stationary-engineers-and-boiler-operators/", "methodology": "https://cookedindex.com/methodology", "notice": "Verdicts are re-examined as evidence accumulates. Re-fetch before relying on this; the page above always carries the current score.", "scored_at": "2026-08-11", "model": "claude-opus-5", "occupation": { "title": "Stationary Engineers and Boiler Operators", "soc_code": "51-8021", "category": "Production", "us_employment": 28250, "median_annual_wage": 78620 }, "verdict": "EXPOSED", "risk_resistance": 64, "contested": false, "near_boundary": false, "dimensions": { "task_resistance": 13, "embodiment": 17, "liability_shield": 12, "trust_premium": 7, "judgment_accountability": 15 }, "reasoning": { "task_resistance": "The wrench work — repacking a leaking pump, replacing gaskets on a heat exchanger, rodding tubes, running a low-water cutoff test — stays manual, but the round-the-clock watchkeeping that justified three shifts is exactly what BAS trending and remote alarm centers absorbed, so this lands at 13 rather than 17: the hands survive, the watch does not.", "embodiment": "You are in the boiler room, on ladders, in confined spaces, inside a crawlspace chasing a steam leak, working around 150 psi headers, hot condensate, refrigerant, and caustic water-treatment chemicals — 17 not 20 only because the plant itself is a fixed, mapped, indoor space rather than an open field or a rooftop in weather.", "liability_shield": "State and municipal codes (Chicago, New York, Massachusetts 1st/2nd class engineer, most high-pressure jurisdictions) require a named licensed operator on the premises, and a failed inspection or an incident traces to your license — 12 rather than 18 because low-pressure and unfired-vessel plants in many states need no license at all, so the shield covers part of the occupation, not all of it.", "trust_premium": "Facility managers and chief engineers keep the operator who knows which chiller trips on humid startups and where the building's undocumented valves are, but the customer relationship is with the building, not you, and a contract O\\u0026M firm can swap operators between sites — 7 reflects institutional familiarity, not an irreplaceable bond.", "judgment_accountability": "When the low-water alarm and the sight glass disagree at 3 a.m., you decide whether to secure the boiler and drop heat to the building or keep firing, and the same call governs a refrigerant leak, a nuisance flame-failure lockout, or bringing a cold boiler up on a February morning without thermal-shocking it — 15 because the consequences run to explosion and ASME/NBIC scrutiny, held below 18 by the fact that written operating procedures and lockout/tagout cover the routine sequences." }, "rationale": "Most of the day is physical: walking the plant, reading gauges and sight glasses, blowing down boilers, packing pumps, changing filters and belts, chemically treating water, and hand-cranking valves during a chiller changeover — none of which robotics touches at usable cost today. What AI and building automation systems do erode is the monitoring and logging tier: trend analysis, load scheduling, alarm triage, and the hourly log sheet are increasingly handled by BAS platforms and remote monitoring centers, which is why one operator now covers plants that used to need three. Many jurisdictions still require a licensed boiler operator physically on site for high-pressure plants, and that licensure — a regulatory shield, not a technical one — is the single biggest thing holding headcount up.", "outlook": "Headcount keeps shrinking as automation lets one licensed operator cover more plants remotely, but licensed high-pressure operators who can also do the mechanical repairs will stay in demand and command more per head.", "what_would_raise_it": { "levers": [ { "dimension": "liability_shield", "change": "State and municipal boiler codes retaining or restoring mandatory continuous-attendance rules for high-pressure plants — e.g. a state board of boiler rules (NY, PA, Ohio, Massachusetts) declining to grant 'unattended' or 'limited-attendance' operating permits for automated boilers above a pressure/BTU threshold, and requiring a named licensed operator of record personally liable for logs and safety-valve testing. The reverse motion is already visible: ASME CSD-1 and NFPA 85 based unattended-boiler allowances plus insurer sign-off let jurisdictions reduce attendance, so watch specific state rulemaking dockets either way.", "plausibility": "plausible", "would_add": 4 }, { "dimension": "liability_shield", "change": "Boiler and machinery insurers (Hartford Steam Boiler, FM Global) conditioning coverage on a licensed operator physically walking and countersigning daily inspection records rather than accepting remote monitoring center logs — an underwriting requirement, not a statute, but functionally binding on hospitals, universities and district energy plants.", "plausibility": "already happening", "would_add": 3 }, { "dimension": "judgment_accountability", "change": "As BAS platforms absorb trending, load scheduling and alarm triage, the residual role concentrates in abnormal-condition calls: low-water cutout failure, carryover, refrigerant leak evacuation decisions, deciding whether to drop a chiller during a heat event in an occupied hospital. If facilities employers formalize the operator as the incident-command authority for plant shutdown (as many hospital emergency operations plans already do under Joint Commission utility-management standards), the accountability tier hardens.", "plausibility": "plausible", "would_add": 3 }, { "dimension": "task_resistance", "change": "Genuine two-tier structure: if remote monitoring centers take over the hourly log and alarm sorting, what remains on site is diagnostic hands-on work — packing pumps, chasing a tube leak, water chemistry troubleshooting, retubing coordination, valve rebuilds — which is the fraction AI cannot do. Task-mix shift alone raises this without any new law, though it comes bundled with fewer positions.", "plausibility": "already happening", "would_add": 3 }, { "dimension": "embodiment", "change": "Little headroom; the work is already near-ceiling physical. Marginal increase only if plants push more in-house mechanical repair onto operators instead of outside contractors, e.g. multi-skilling clauses in IUOE local agreements that fold millwright and refrigeration mechanic tasks into the operator classification.", "plausibility": "plausible", "would_add": 1 } ], "ceiling_note": "Trust premium has no realistic route: the buyer is a facilities budget owner who wants uptime at lowest cost and has no preference for a human per se — nobody pays extra to know a person read the sight glass. The entire defensible position is licensure and insurer attendance requirements, and the observable regulatory motion (unattended-boiler permits under CSD-1/NFPA 85) currently runs the other direction. Even with every lever above, headcount consolidation continues; the score describes the job's resistance, not the number of jobs." }, "adjudication": null, "employment_history": { "points": [ { "y": 2017, "emp": 32790, "wage": 59890 }, { "y": 2018, "emp": 31710, "wage": 60440 }, { "y": 2019, "emp": 32520, "wage": 62150 }, { "y": 2020, "emp": 29550, "wage": 64680 }, { "y": 2021, "emp": 29820, "wage": 63500 }, { "y": 2022, "emp": 31470, "wage": 67120 }, { "y": 2023, "emp": 33840, "wage": 67640 }, { "y": 2024, "emp": 30780, "wage": 75190 }, { "y": 2025, "emp": 28250, "wage": 78620 } ], "from": 2017, "to": 2025, "change_pct": -13.8, "comparable_from": 2019, "spans_soc_revision": true }, "pivots": [], "license": "https://cookedindex.com/terms" }