May 17, 2026
For a 2026 New York-to-Miami winter business trip, the same aircraft might fly empty under Part 91 for repositioning, then operate under Part 135 when paid passengers board. That distinction affects safety, taxes, scheduling, insurance, and legal compliance, as operators must comply with all applicable regulations under Part 135.
14 CFR Part 135 is part of the Federal Aviation Regulations (FARs) in Title 14 of the Code of Federal Regulations. BlackJet Fractional Jet Ownership helps clients understand FAR Part 91 vs. Part 135, and when fractional aircraft ownership, jet card programs, or charter flights should be structured under each code, while also clarifying essential fractional jet ownership terms and concepts.
Part 135 is the federal aviation regulations framework for most U.S. charter flights, air taxis, and many flights used by fractional programs like BlackJet Fractional Jet Ownership.
It applies to U.S. on-demand operations where an air carrier carries passengers or cargo for compensation or hire.
The difference from Part 91 is oversight: Part 135 has stricter pilot qualifications, training, maintenance, weather minimums, and operational control.
Certification, operations specifications, and continuous FAA review add cost, but operators must comply with all regulatory requirements to obtain and maintain certification, helping to ensure the highest safety standards.
Prospective clients should determine when their flight is Part 135 and how their provider audits certificate holders.
FAA Part 135 governs commuter and on-demand commercial operations, including private jet charters, air taxis, and non-scheduled cargo flights. Part 135 regulations govern commercial aviation operations, specifically for non-scheduled air carriers and commercial operators, including charter flights and air taxi services. Examples of operations covered by Part 135 include private air charters, air taxi services, and medical flights, which help illustrate the range of services regulated under these rules.
Part 135 applies to aircraft operators providing air transportation services to the public, specifically for aircraft with 30 or fewer passenger seats or a maximum payload capacity of 7,500 pounds. These 135 operations are on-demand and chartered specifically when a client needs to travel, contrasting with the scheduled nature of Part 121 operations used by major airlines.
Part 91: baseline general aviation rules for personal, recreational, or non-commercial corporate flights.
Part 135: commercial for-hire operations, including business jet charter, helicopter charter, medical flights, and air taxi demand.
Part 121: large scheduled airline operations.
The Federal Aviation Administration enforces these federal regulations to ensure safe procedures, crew qualifications, maintenance, and flight conduct.
To operate under Part 135, companies must obtain an Air Carrier Certificate and Operations Specifications from the FAA, which involves submitting the appropriate application form and supporting documents, along with extensive documentation, safety management systems, and robust liability and insurance coverage for fractional jet owners. Operators must also hold economic authority from the Department of Transportation (DOT) and maintain specific liability insurance for passenger safety and property damage.
The Part 135 certification process typically takes 6-12 months and requires operators to demonstrate their ability to conduct safe commercial operations. The certification process for Part 135 operators utilizes a phase and gate system that has 5 distinct phases and 3 gates, with each phase requiring successful completion before moving to the next.
The FAA’s Part 135 certification process includes:
Pre-application: citizenship, base, scope, and intended operations.
Formal application: manuals, management, aircraft, resources, insurance, and submission of the required form.
Design assessment: the FAA reviews procedures, training, SMS, and maintenance systems.
Performance assessment: proving the operator can conduct flights safely.
Administrative functions: final certification and issuance.
Operators must develop and maintain a General Operations Manual (GOM) and an approved Airplane Flight Manual (AFM) outlining standard operating procedures. Operators must maintain an FAA-approved management team, including a Chief Pilot, Director of Operations, and Director of Maintenance.
Operations specifications are FAA-issued documents showing how a specific air carrier may operate. They can cover aircraft types and tail numbers, geography, instrument approaches, minimum runway requirements, Caribbean or U.S. authority, and special procedures.
Two operators utilizing the same aircraft model may not have the same ability to land at a short island runway, mountain airport, or low-visibility airport. BlackJet Fractional Jet Ownership monitors partner OpSpecs so operational capabilities match client circumstances and safety expectations.
Pilot qualifications under Part 135 are stricter than those for private flying under Part 91. Pilot-in-command (PIC) rules generally mandate an Instrument Rating and a minimum of 1,200 total flight hours for Instrument Flight Rules (IFR), with additional experience, command checks, type ratings, and recurrent training depending on aircraft and mission.
Eligible on-demand operations often require two qualified pilots for turbine charter service. Operators are subject to mandatory drug and alcohol testing for all safety-sensitive employees. Operators must enforce strict rest and duty time regulations to mitigate pilot fatigue, typically requiring 9 to 11 consecutive hours of rest depending on flight length.
Sophisticated flyers should ask about average flight time, simulator training providers, line checks, and third-party ratings such as ARGUS, Wyvern, or IS-BAO.
Aircraft must undergo more rigorous, FAA-approved inspection and maintenance programs than standard annual inspections. Part 135 operators must adhere to rigorous maintenance requirements and operational limitations designed to enhance safety, including specific protocols for pilot training and aircraft maintenance.
Maintenance includes scheduled inspections, logbook discipline, Airworthiness Directive compliance, manufacturer guidance, and Minimum Equipment List control when something is unable to be used. These requirements exist because Part 135 regulations establish a minimum standard for safety in commercial aviation operations, specifically for non-scheduled air carrier and commercial operator operations.
Commercial aviation under Part 135 has a substantially lower accident rate than general aviation, attributed to comprehensive training requirements, maintenance standards, and operational procedures that create multiple layers of safety protection. FAA safety data has shown Part 135 accident rates far below broader general aviation averages.
Point | Part 91 | Part 135 | Part 121 |
|---|---|---|---|
Use | Private | Commercial charter | Scheduled airline |
Payment | No compensation for transport | Paid air transportation | Ticketed service |
Oversight | Lower | Higher | Highest |
Weather | More flexible | Stricter weather minimums | Airline dispatch rules |
ID | Usually not required domestically | Government ID required | TSA process |
Part 91 is the baseline regulation for general aviation, governing personal, recreational, or non-commercial corporate flights. Part 135 operations are commercial in nature, requiring payment for services, while Part 91 operations are noncommercial and do not allow for compensation for flights, which has a direct impact on how aircraft fractional ownership contracts must be structured.
Under Part 135, pilots must adhere to stricter operational guidelines, including minimum weather conditions for takeoff, which are not as stringent under Part 91. Passengers flying under Part 135 must present government-issued identification, whereas under Part 91, identification is not typically required for domestic flights.
Fractional jet ownership often blends rule sets. Owner flights may occur under Part 91 when no external hire is involved, while revenue flights for non-equity users may operate under Part 135, making it important to compare fractional jet ownership vs. membership programs when choosing how you access aircraft.
This matters for tax treatment, including business deductions and possible federal excise tax on commercial air transportation, as well as broader tax implications for fractional jet owners. BlackJet’s Reserve Fleet is designed for flexible access without ownership cost, while its Equity Fleet supports fractional ownership benefits with access to reputable Part 135 operators where commercial service is provided, including guidance on fractional jet ownership financing, costs, and benefits.
Part 135 increases private jet cost because of certification, compliance staff, flight-following, training, insurance, safety management systems, and maintaining rigorous maintenance programs, all of which layer on top of the underlying cost of fractional jet ownership. Clients are not just paying to fly; they are paying for regulated oversight, professional crews, and documented processes.
Industry reports show fractional and charter activity now represents a major share of U.S. private aviation. For clients flying roughly 25–150 hours per year, fractional jet ownership as an investment can provide more predictable access than ad-hoc charter while preserving freedom and peace of mind.
Not all operators are equal, even when subject to the same regulations. A practical review should include:
Verify the active Part 135 certificate and legal air carrier name.
Review safety history, insurance, and incident records.
Confirm pilot hours, landing currency, recurrent training, and rest systems.
Ask about SMS maturity, operational control, dispatch, and real-time weather decisions.
Look for ARGUS Gold/Platinum, Wyvern Wingman, or IS-BAO where appropriate.
BlackJet uses this process to assist clients and adhere to high service standards, complementing a careful review of essential fractional jet ownership contract terms before you commit.
BlackJet Fractional Jet Ownership helps businesses and individuals compare fractional aircraft ownership, jet card programs, Reserve Fleet access, Equity Fleet shares, and ad-hoc charter, while modeling the total cost of fractional jet ownership across different structures. Its team reviews operations specifications, safety performance, maintenance quality, and compliance before placing clients on partner aircraft and can benchmark options against the best fractional jet ownership programs for investors.
Ready to explore a smarter way to fly private? Visit FractionalJetOwnership.com to schedule a consultation.
No. Many private jet flights operate under Part 91 when the aircraft is used by an owner or a qualifying fractional owner for non-paid travel. Paid transportation usually requires Part 135 or Part 121 authority, whether you are using a dedicated aircraft or a floating fleet in a fractional ownership program.
Usually not. Renting out a jet to the public without proper certification can create grey charter risk, fines, insurance issues, and safety concerns.
Part 135 rules can require delays, diversions, alternate airports, or crew changes when weather, visibility, duty limits, or rest requirements make a trip unsafe.
Yes. Domestic Part 135 passengers generally avoid airline-style TSA screening, but adults must present government-issued ID. International flights require a passport and customs clearance.
Ask for the operating air carrier’s legal name, certificate number, aircraft N-number, and confirmation that the assigned flight is listed under valid operations specifications.
Part 135 is not just a regulatory title; it is the framework that determines how commercial private aviation can legally and safely operate. For fractional buyers, understanding this difference helps protect safety, flexibility, tax planning, and long-term value, including when evaluating whether 1/8 fractional jet ownership structures align with expected flight hours.
BlackJet Fractional Jet Ownership helps clients select the right structure, verify compliance, and fly with confidence, and can assist when you decide to sell or transfer a fractional jet ownership share.
