Charter brokers vet Part 135 operators in two layers. The legal layer confirms you hold a current FAA air carrier certificate, that the tail number is listed on your operations specifications (the D085 aircraft listing), that you carry current liability insurance, and that you hold DOT economic authority (the air-taxi registration filed on OST Form 4507 under 14 CFR Part 298). The safety layer is often a third-party check — ARGUS TripCHEQ or a Wyvern PASS report — that validates the assigned crew and aircraft against pilot certificates, currency, accident history, maintenance status, and insurance. Those tools are private programs, not FAA requirements. Every check pulls from records you own, so the vet succeeds or fails on whether your documentation is current and instantly retrievable.
If you searched "how do charter brokers vet operators", "argus tripcheq", "how brokers check part 135 operators", or "how to check if a charter operator is legit" and only found passenger-facing pages, this is the operator-side answer. We will walk the two layers of a vet, name exactly which records each one touches, show the records that most often fail a vet, and be explicit about the part the marketing pages blur: the third-party tools are private programs, not FAA rules. If you also need to know what the FAA itself requires of you, start with what records a Part 135 operator must keep.
A Broker Vet Has Two Layers — Know Both
When a serious charter broker or a corporate flight department evaluates you, they are answering two separate questions. Are you legal? — a yes/no based on your FAA and DOT paperwork. And are you safe enough for my customer? — a judgment they often outsource to a third-party program. Operators get tripped up because they prepare for one layer and forget the other.
Layer 1 — Legal / regulatory
FAA + DOT paperwork · pass/fail
The non-negotiable baseline. A broker confirms you are authorized to carry their customer for hire at all: a current FAA air carrier certificate, the aircraft on your operations specifications, current insurance, and DOT economic authority. This layer is about legality, and it is binary — the document is either current and on file or it is not.
Layer 2 — Safety (third-party)
ARGUS / Wyvern · voluntary programs
Above the legal floor, many brokers want independent assurance. They run an ARGUS TripCHEQ or pull a Wyvern PASS report to validate the exact crew and aircraft on the trip, or they require an ARGUS rating, Wyvern Wingman, or IS-BAO registration. These are private programs — valuable to win business, but not a substitute for the legal layer or for your FAA obligations.
The two layers verify a heavily overlapping set of records — pilot currency, maintenance, insurance — which is the operator's real advantage: get your documentation in order once and you clear both. For a head-to-head on the safety-layer programs themselves, see ARGUS vs Wyvern vs IS-BAO, and for the budgeting angle, how much those audits cost.
Layer 1: The Legal Records Brokers Confirm
These four documents are the legal floor of a vet. A broker (or their compliance tool) confirms each one before they let their customer fly with you. None of them is optional, and all of them carry dates that can lapse — which is why "we have it somewhere" is not the same as passing.
FAA air carrier certificate
Confirms you are authorized to conduct Part 135 charter at all. Brokers verify the certificate number and that it is current and authorizes the operation being quoted.
D085 operations specification (aircraft listing)
The OpSpec paragraph listing every tail number approved for revenue Part 135 service. The assigned aircraft must appear on it — a tail quoted before the D085 is amended is a classic vet failure.
Current liability insurance
A current certificate of insurance at the limits the broker requires, often naming required additional insureds. A lapsed or under-limit certificate stalls bookings even for a safe operator.
DOT economic authority (OST Form 4507)
Air-taxi economic authority filed with DOT under 14 CFR Part 298 on OST Form 4507. It is the economic-authority counterpart to your FAA safety certificate.
Certificate vs. authority — two different documents
A common point of confusion: your FAA air carrier certificate (with its operations specifications, including the D085) is your safety authorization to operate. Your DOT economic authority — the air-taxi registration filed on OST Form 4507 under 14 CFR Part 298 — is your economic authorization to sell that transportation. A thorough broker checks both, because they are separate filings issued by different parts of the federal government.
Layer 2: The Third-Party Tools — ARGUS TripCHEQ & Wyvern PASS
Above the legal floor, the two tools you will hear about most are ARGUS TripCHEQ and the Wyvern PASS report. Both are per-trip checks run by private companies (ARG/US and Wyvern, respectively), and both validate the specific crew and aircraft assigned to a flight rather than just rubber-stamping the operator in general. Here is what each one is, in plain English.
ARGUS TripCHEQ
Per-flight check · ARG/US (private)
A due-diligence tool that lets a broker or customer verify a specific trip before booking. Per ARGUS's public material, a TripCHEQ validates the operator's valid operating certificate, operational control of the aircraft, and aircraft insurance levels, plus the assigned crew's certificates, type ratings, and accident/incident/violation history.
ARGUS-rated operators keep records current with ARGUS so a TripCHEQ clears before each flight. Source: argus.aero (2026).
Wyvern PASS report
Per-trip survey · Wyvern (private)
PASS (Pilot and Aircraft Safety Survey) is a multi-point pre-flight check that validates the exact crew and aircraft on the day they fly. Per Wyvern, it confirms a current air operating certificate, that the aircraft is listed on the carrier's operations specifications, current insurance, and that pilots are certificated, type-rated, and current on medical and training with adequate flight time.
PASS validates the assigned trip, not the operator forever. Source: wyvernltd.com (2026).
Notice the overlap: both tools read the same underlying records — operating certificate, OpSpecs/D085, insurance, pilot currency, maintenance status. They are convenient front-ends for a broker, but the data is yours. A TripCHEQ or PASS report comes back clean when your records are current and comes back with an exception when something on your side has lapsed. Here is the full set of records the safety layer touches.
Pilot certificates, type ratings & currency
Assigned crew must be properly certificated, type-rated, current on training and medical, and meet flight-time thresholds — pulled from your training and qualification records.
Accident / incident / violation history
Third-party tools surface the operator and crew safety history. This is database-driven, but it is cross-checked against the records you maintain.
Maintenance & airworthiness status
Inspection currency and airworthiness status for the assigned aircraft. An overdue inspection item can flag a per-trip check on the day of the flight.
Crew background verification
Background and pilot-history verification that ARGUS TripCHEQ and Wyvern PASS reports reference for the assigned crewmembers.
"Registered" is not the same as audited or rated
When a broker says an operator is "on Wyvern" or "in ARGUS," ask what that means. Wyvern Registered (or an operator simply being in a database) is not the same as a Wyvern Wingman audit or an ARGUS Gold/Platinum rating. A per-trip TripCHEQ or PASS is also different from a full on-site audit. Know which one a customer is actually asking for — and remember none of them is an FAA clearance. For the distinctions, see ARGUS vs Wyvern vs IS-BAO and the IS-BAO Stage 1/2/3 difference.
Would your records pass a broker vet today?
A vet rewards retrievability as much as compliance. FileFlo's free FAA readiness score takes about 3 minutes and surfaces the document gaps most likely to slow — or fail — a charter-broker vet, an ARGUS TripCHEQ, or a Wyvern PASS check. No signup required.
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Why Operators Fail a Vet — It's Rarely About Being Unsafe
Here is the pattern we see again and again: a perfectly safe, well-run operator loses a booking not because of a safety problem, but because a record was lapsed, missing, or couldn't be produced fast enough while the broker moved on to a competitor. These are the most common record-level reasons a vet stalls — and the fix for each is the same: currency tracking and instant retrieval.
| Record | How it fails the vet | What fixes it |
|---|---|---|
| Pilot recurrent training / checkride | Expired before the trip date | Track every crewmember’s recurrent and checkride dates with 90/60/30-day alerts. |
| Pilot medical certificate | Lapsed for an assigned PIC or SIC | Flag medical expiry alongside training so no crew is assigned on an expired med. |
| Aircraft inspection / airworthiness | Inspection item overdue at trip time | Keep inspection status and airworthiness records current and instantly retrievable per tail. |
| Certificate of insurance | Lapsed, under-limit, or missing additional insureds | Store the current COI and surface its expiry; produce it on request in seconds. |
| D085 aircraft listing | Tail quoted before it was added to OpSpecs | Hold the current D085 and confirm the tail is listed before the aircraft is offered. |
| DOT authority (OST Form 4507) | Economic authority registration out of date | Keep the Part 298 registration on file and current alongside the FAA certificate. |
The "we have it somewhere" failure
The document exists, but it lives in an inbox, a shared drive, or a binder, and it takes a day to find. In a competitive quote, slow is the same as missing. Retrieval speed is part of the vet.
The "quoted before it was added" failure
A new tail is offered to a customer before the D085 OpSpec is amended, or a new pilot is assigned before training is logged. The aircraft or crew is not yet eligible, and a careful check catches it.
For the deeper version of these failure modes on the audit side, see common ARGUS audit findings and why operators fail, and to get ahead of an audit, the ARGUS & Wyvern audit document checklist and how to prepare for an ARGUS audit.
Important: The Third-Party Tools Are Not FAA Requirements
Market credentials vs. the FAA SMS mandate
ARGUS (ARG/US), Wyvern, IS-BAO (IBAC), and ACSF are voluntary, third-party programs. The FAA does not require any of them, and a clean TripCHEQ or PASS report — or even an ARGUS Platinum rating — does not satisfy your FAA obligations. They exist because brokers and corporate flight departments use them to vet operators. Your FAA obligations come from your Part 135 certificate and operations specifications, and from the Safety Management System rule in 14 CFR Part 5.
The distinction matters because a market credential and a regulation are different obligations. Under 14 CFR §5.1, the SMS rule applies to Part 121 air carriers, Part 135 certificate holders, holders of a §91.147 Letter of Authorization, and certain Part 21 certificate holders. Under 14 CFR §5.9, operators already authorized before the rule must develop and implement an SMS and submit a Declaration of Compliance no later than May 28, 2027. A broker who knows the difference checks both your legal layer and a safety program — and never treats a TripCHEQ as proof you meet the SMS rule.
There is good news in the overlap. Doing the records work for ARGUS, Wyvern, or IS-BAO exercises the same components the FAA rule expects, so it gives you a head start on the mandate — but the FAA requires its own SMS and Declaration of Compliance; the rating is not a substitute. Whether any rating "counts" toward the rule is worth its own read: does an ARGUS rating satisfy the Part 135 SMS rule?
This Is the Operator Side — Not the Part 295 Broker Rules
It's easy to confuse two related topics, so here is the clean split. 14 CFR Part 295 is the DOT consumer-protection rule that governs air charter brokers themselves — what a broker is (an indirect air carrier or bona fide agent) and what the broker must disclose to the customer, including the corporate name of the direct air carrier in operational control of the aircraft. That is the broker's obligation, and we cover it in detail in a companion guide.
This article is the mirror image — the operator side. Not what the broker must disclose, but what those brokers check about you, and the records that let you pass their vet. The two fit together: Part 295 requires the broker to tell the customer who is in operational control; the vet is how the broker confirms that the operator they're naming is legitimate, current, and safe. You want to be the operator who makes both effortless.
The broker's rule
14 CFR Part 295
DOT disclosure duties the broker owes the customer — including naming the direct air carrier in operational control. This is about the broker's conduct, not yours.
Read the Part 295 broker guideYour side (this guide)
Operator vetting
What the broker checks about the operator: FAA certificate, D085 OpSpec, insurance, DOT authority, and a TripCHEQ or PASS on the assigned crew and aircraft. Pass it with current, retrievable records.
See the records prep checklistTwo adjacent reads round this out: corporate flight departments do not sell charter, so their vetting and records look different — see Part 91 corporate flight department records and voluntary SMS for a Part 91 flight department. And maintenance providers are vetted on a different standard entirely — see Part 145 repair station recordkeeping requirements and the Part 145 RSQCM.
How FileFlo Helps: The Records That Pass the Vet
FileFlo holds and proves the records — it is not a broker, an auditor, or a rating body
FileFlo is a compliance document intelligence platform. It classifies your records, version-controls them, tracks expirations and recurrence, and assembles an organized evidence set on demand. It does not vet operators, does not run an ARGUS TripCHEQ or Wyvern PASS, does not grant or guarantee any rating, is not an auditor or consultant, and does not provide legal advice. ARGUS, Wyvern, IS-BAO, and ACSF are registered trademarks of their respective independent organizations, and FileFlo is not affiliated with or endorsed by any of them. FileFlo attacks one specific bucket: keeping the records a vet pulls from current and instantly retrievable.
The honest positioning: you still earn the rating and own your safety program, and the broker still runs the vet. What FileFlo removes is the reason most operators stumble — the records behind the vet being lapsed or slow to produce. When your FAA certificate, D085 OpSpec, insurance, pilot currency, and maintenance records are classified, dated, and one click away, a TripCHEQ or PASS comes back clean and a broker's document request is answered in seconds, not days.
Holds every record a vet pulls from
FAA certificate and operations specifications (incl. the D085 aircraft listing), certificates of insurance, DOT authority filings, pilot training/currency/medical, and maintenance records — filed by type, so nothing is buried when a broker asks.
Tracks expirations so nothing lapses before a quote
Pilot currency, recurrent training, medicals, inspections, and insurance all carry dates. FileFlo flags upcoming gaps 90, 60, and 30 days out — so you fix a lapse before it costs you a booking or trips a TripCHEQ/PASS exception.
Produces the document a broker requests in seconds
When a broker or platform asks for your certificate, OpSpecs, or current COI, FileFlo retrieves it instantly — turning "we have it somewhere" into an immediate, organized response that keeps you in the running.
One records home for vets, audits, and the FAA
Because broker vets, ARGUS/Wyvern audits, and FAA surveillance verify a heavily overlapping set of records, FileFlo holds them once. Pass a vet, prep an audit, or face an FSDO visit from a single retrievable system.
Starter Plan
$89/mo
Up to 100 documents/month · 3 users
For smaller operators keeping certificate, OpSpec, insurance, and crew records vet-ready.
Professional Plan
$299/mo
Unlimited documents + users · audit trail · employee auto-detection
For multi-aircraft operators clearing frequent broker vets and per-trip checks across many tails.
FileFlo pricing is a fixed published rate (5-day free trial on both plans). It is separate from, and additional to, any broker relationship, audit fee, or rating-program cost — and it targets the records/proof bucket, not the vet, the audit, or any rating decision.
Frequently Asked Questions
How do charter brokers vet Part 135 operators?
Most professional charter brokers and booking platforms vet an operator in two layers. First, the legal layer: they confirm you hold a current FAA air carrier certificate authorizing Part 135 operations, that the specific tail number is listed on your operations specifications (the D085 aircraft-listing OpSpec), that you hold current liability insurance at the level they require, and that you have DOT economic authority on file (the air-taxi registration filed on OST Form 4507 under 14 CFR Part 298). Second, the safety layer: many brokers run a third-party check through ARGUS TripCHEQ or a Wyvern PASS report, which validate the assigned crew and aircraft against pilot certificates, type ratings, currency, accident/incident/violation history, maintenance status, and insurance. None of the third-party tools is an FAA requirement — they are private programs. The records they pull from are yours, so the entire vet succeeds or fails on whether your documentation is current and retrievable.
What is ARGUS TripCHEQ and what does it check?
ARGUS TripCHEQ is a per-flight due-diligence tool from ARG/US (a private company, not the FAA) that lets a charter broker or customer verify a specific trip before they book it. According to ARGUS's public material, a TripCHEQ validates the operator's valid operating certificate, operational control of the aircraft, and aircraft insurance levels, plus the assigned crew's pilot certificates, type ratings, and accident/incident/violation history, and background information on the crew. It is a snapshot of one trip's crew and aircraft, not a blanket statement that an operator is safe forever. Operators that hold an ARGUS rating must keep their records current with ARGUS so a TripCHEQ clears before each flight — which is exactly why a lapsed pilot currency date or an expired insurance certificate on your side can cause a TripCHEQ to come back with an exception.
What does a Wyvern PASS report verify?
A Wyvern PASS report (Pilot and Aircraft Safety Survey) is a per-trip pre-flight check from Wyvern, another private safety organization. Wyvern describes PASS as a multi-point inspection that validates the exact crew and aircraft assigned to an individual flight on the day it operates. It confirms the operator holds a current air operating certificate, that the chartered aircraft is listed on the carrier's operations specifications, that the aircraft carries current insurance, that the assigned pilots are properly certificated and type-rated with current medical and training records and adequate flight time, and that each crew member's experience meets a defined safety threshold. Like TripCHEQ, PASS is a customer-facing tool, not an FAA mandate — but it reads directly from your pilot, maintenance, and insurance records, so the report is only as clean as your filing.
How do I check if a charter operator is legitimate?
From the customer or broker side, the baseline checks are: ask for the operator's FAA air carrier certificate number and confirm it authorizes Part 135 charter; ask for the operations specifications showing the specific tail number is approved for revenue service (the D085 aircraft listing); confirm the operator carries current liability insurance at an appropriate level; and confirm the operator holds DOT economic authority (the Part 298 air-taxi registration, filed on OST Form 4507). The single biggest red flag is an operator that cannot promptly produce these documents, or whose tail number does not match the certificate's records. Many brokers add a third-party layer on top — an ARGUS rating, a Wyvern Wingman audit, or an IS-BAO registration — but those are voluntary programs, not proof of legality. From the operator side, the lesson is the same: if a broker has to wait days for your certificate, OpSpecs, or insurance, you have already lost ground in the vet.
What is the D085 operations specification and why does it matter to brokers?
The D085 is the operations-specification paragraph that lists each individual aircraft authorized for use in your Part 135 operation — effectively the master list of tail numbers approved for revenue charter. It matters to brokers because it is the cleanest single document that proves a given aircraft is legally yours to fly for hire. When a broker or a third-party tool checks a trip, one of the first things confirmed is that the assigned tail number appears on the operator's OpSpecs. If you add an aircraft and start quoting it before the D085 is amended, a careful broker's vet — or a Wyvern PASS or ARGUS TripCHEQ — can flag it, and the trip stalls. Keeping your D085 current and instantly retrievable, alongside the certificate and insurance, is one of the highest-leverage things an operator can do to pass vetting quickly.
Does being ARGUS rated or Wyvern Wingman mean an operator passed the FAA?
No. ARGUS ratings (Gold, Gold Certified, Platinum), Wyvern Wingman, IS-BAO registration, and ACSF's Industry Audit Standard are private, voluntary third-party programs. None of them is issued by the FAA, and holding one does not satisfy your FAA obligations. The FAA's authority comes from your Part 135 air carrier certificate, your operations specifications, and the regulations in 14 CFR Part 135 — and, separately, the Safety Management System rule in 14 CFR Part 5, which under §5.1 applies to Part 135 certificate holders and under §5.9 requires operators authorized before the rule to implement an SMS and file a Declaration of Compliance no later than May 28, 2027. A third-party rating can make a broker more comfortable and can give you a head start on the SMS rule because it exercises similar records, but it is a market credential, not a regulatory clearance. Brokers who know the difference check both.
What records cause operators to fail a charter broker vet?
In practice, operators rarely fail a vet because they are unsafe — they fail because a record is lapsed, missing, or cannot be produced fast enough. The usual culprits are: a pilot whose recurrent training, checkride, or medical has expired; an aircraft inspection or airworthiness item that is overdue; an insurance certificate that has lapsed or that does not name the broker's required limits or additional insureds; a tail number being quoted before it is added to the D085 OpSpec; or DOT economic authority (the OST Form 4507 registration) that is out of date. A clean, current operation can still lose a booking simply because the certificate, OpSpecs, and insurance took two days to locate while the broker moved on to a competitor. Vetting rewards retrievability as much as compliance — which is the gap a document system closes.
How is this different from 14 CFR Part 295 charter broker rules?
14 CFR Part 295 is the DOT rule that governs air charter brokers themselves — what a broker is (an indirect air carrier or bona fide agent), and what the broker must disclose to the customer, including the corporate name of the direct air carrier in operational control of the aircraft. That is the broker's obligation. This article is the operator-side mirror image: not the broker's disclosure duties, but what those brokers check about you, and the records that let you pass their vet without losing the booking to a lapsed certificate or a slow document hunt. If you want the broker-side rules in full, read our companion guide on charter broker compliance under 14 CFR Part 295. The two fit together: the broker must disclose who is in operational control, and you must be able to prove — quickly — that it is legitimately you.
Don't lose a booking to a lapsed record
Charter-broker vets reward retrievability as much as compliance. FileFlo handles the bucket every vet pulls from: it classifies your FAA certificate, OpSpecs, insurance, and crew records, surfaces expiring pilot, training, and maintenance records before they become a vet exception, and produces any document a broker asks for in seconds. Starter at $89/mo · Professional at $299/mo · 5-day free trial.
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Written by Chad Griffith, Founder, FileFlo — compliance document intelligence. This article explains charter-broker operator vetting from a compliance-document perspective. ARGUS (ARG/US), Wyvern, IS-BAO (IBAC), and ACSF are independent, voluntary programs and registered trademarks of their respective owners; FileFlo is not affiliated with, endorsed by, or a substitute for any of them, is not a broker or an auditor, and does not grant or guarantee any rating. Tool capabilities (ARGUS TripCHEQ, Wyvern PASS) reflect each body's public material as of 2026 and can change — confirm current details directly with each program. Cited regulatory facts reflect 14 CFR Part 5, Part 135, Part 295, and Part 298 as published; this is not legal, financial, or safety-program advice. Always confirm your FAA and DOT obligations with your assigned FSDO and counsel.