Private Jet Safety Ratings: ARGUS, Wyvern and IS-BAO Explained

Start with the licence, not the badge

Every rating sits on top of one legal fact: a paid passenger flight is commercial air transport. The UK Civil Aviation Authority puts it plainly: a paid flight in a business jet is recognised in law as commercial air transport and should never be considered as a private arrangement, and the operator must have the correct certificate, insurance and licences. In Europe that certificate is the air operator certificate, which allows an operator to perform specific operations of commercial air transport and is issued by the national authority where the operator has its principal place of business.

The seller and the operator are often different companies, which is why the law insists on naming the operator. EU Regulation 2111/2005 requires that, upon reservation, the air carriage contractor shall inform the passenger of the identity of the operating air carrier. A quote that names an aircraft type but no operator is not a quote I would sign. For the wider picture of who does what, see broker, operator and aircraft sales broker.

Why the grey market matters

The ratings exist partly because illegal charter does. Aviation International News described grey charter as a growing issue in Europe, citing the 2019 crash that killed the footballer Emiliano Sala, where the pilot had been paid despite only holding a private pilot license. The Air Charter Association’s summary was blunt: under EASA rules a flight for hire and reward must be approved by the relevant aviation authority and flown by a professionally trained crew under an AOC.

At the far end of the scale sits the EU Air Safety List, which currently bans 154 airlines from EU skies. It is mostly about airlines, not business jet operators, but I check it whenever a non-European operator is involved.

ARGUS: Gold, Platinum and Platinum Elite

ARGUS is the rating most clients have heard of. To appear in its CHEQ registry an operator must have held its certificate for a minimum of one year and operate at least one turbine-powered aircraft, and ARGUS checks that flights are crewed with two highly experienced and properly qualified pilots, even if the aircraft is approved for single-pilot operations. In October 2025 ARGUS widened its Gold audit with 14 new audit categories covering safety management, emergency response, training, fatigue and maintenance; over 400 operators hold Gold.

Platinum is the serious step: a two-day, onsite event examining the safety management system, emergency response, operational control, training and maintenance, with a renewal audit every two years. Platinum Elite adds continuous monitoring, with maintenance and operations reviews every six months, and requires at least two consecutive Platinum audits with no significant findings.

Wyvern: Registered, Wingman and PASS

WYVERN’s operations began in 1991, when large corporations wanted to know whom they could trust with their executives. Its two operator levels are very different. A Registered Operator must have an SMS that conforms to its national authority’s requirements or ICAO Annex 19, while most of the rest of that standard is written as recommendation rather than audited requirement. A Wingman operator must pass a WYVERN audit, reach SMS Level 2 performance, as a minimum, file a remedial plan within 5 business days and close findings within 60 days.

The useful part for a specific trip is the PASS report. A Wingman PASS checks over 150 data points, including crew training, currency and background checks. Its pilot criteria include an airline transport pilot licence for the captain, a first-class medical, simulator training within the past 12 months and no sanctions, accidents or incidents in the previous five years. A Registered PASS covers fewer data points, because the operator has not been audited.

IS-BAO: a standard, not a scorecard

IS-BAO is different in kind. It is the voluntary safety standard launched in 2002 by the International Business Aviation Council, built around a safety management system. Its stages describe maturity: Stage 1 confirms the SMS infrastructure is established; Stage 2 that safety risks are effectively managed; Stage 3 that safety management is fully integrated and a positive safety culture is sustained.

Two details matter when reading it. Registration requires an independent third-party audit, renewed every two or three years, and operators select the auditor and cover the fees. That is normal for certification, but it means IS-BAO tells you that a system exists and has been audited, not how the operator compares with its peers.

How the three compare

In short, as I explain it to clients:

• ARGUS Gold: a records-based check of the certificate, insurance, pilots and safety history, now with a wider audit scope. A sensible minimum, not a distinction.
• ARGUS Platinum, Platinum Elite and WYVERN Wingman: onsite audits of how the operator really runs safety and maintenance. These are the ratings that tell me something.
• WYVERN Registered: a declared commitment with a lighter check. Useful context, not an audit result.
• IS-BAO: an audited safety management standard in three stages of maturity. Stage 2 or 3 tells me the system is working, not merely written down.
• Any rating: a statement about the operator on the audit date, not about the aircraft or the crew on your day.

What ratings cannot tell you in Europe

The ratings carry an American accent. ARGUS, for example, describes its history checks against NTSB and FAA databases, which are US records. In my experience many good European operators hold no ARGUS or WYVERN rating at all, often because their clients never asked for one. The absence of a badge is not a red flag; an unverifiable AOC is.

Ratings also do not cover the specific aircraft and crew. They do not tell me whether this tail number is approved for a steep approach, whether the crew is current on the airport, or whether the operator is quietly subcontracting the flight. Those are questions for the quote, and I list them in the questions to ask a private jet broker.

The checks I run before any charter

My routine is unglamorous and the same for every booking:

• The operator named in writing, with its AOC, issuing authority and the aircraft registration on that AOC.
• Insurance confirmed for the operator and the aircraft, not a generic certificate.
• Any audit or rating checked at the source and in date, rather than taken from a logo on a quote.
• Crew: two pilots, type-rated and current, and familiar with the airport when it is demanding.
• No silent subcontracting: if the aircraft changes, the client hears about it before the contract does.
• A word with people I know at the operator. Relationships are part of the due diligence, as I explain in why operator relationships matter.

My view, briefly

Safety ratings are good for the industry, and I like seeing an ARGUS Platinum, Wingman or IS-BAO Stage 2 or 3 on a quote. But they are a summary of someone else’s audit on a past date. The real question is whether the operator is legal, insured and competent for this flight, and whether the person selling it to you will say no when it is not. That is the standard I would ask any broker to meet, including me; see how to evaluate a charter broker’s credibility.

Frequently asked questions

What is the best private jet safety rating? — ARGUS Platinum Elite and WYVERN Wingman are the most demanding operator ratings, because both rest on onsite audits; IS-BAO Stage 3 is the highest stage of the IS-BAO safety management standard. None replaces checking the operator’s AOC and insurance.

Is an ARGUS Gold rating enough? — It confirms the basics: certificate, insurance, pilot records and safety history, now with a wider audit scope. For a long or demanding trip I prefer an operator with an onsite audit.

Are European charter operators rated by ARGUS or WYVERN? — Some are, many are not. In Europe the base requirement is a valid AOC from the operator’s national authority; the absence of a US-style rating is not by itself a concern.

How do I know who is operating my charter flight? — Ask. Under EU Regulation 2111/2005 the seller must name the operating carrier at reservation, and the UK CAA says passengers must by law be told the operator’s name.