July 22, 2026
Every time a passenger boards a for-hire private jet in the United States, the safety, legality, and professionalism of that flight depend on one thing: a valid FAA Part 135 certification held by the operator.
FAA Part 135 refers to Title 14 of the Code of Federal Regulations (14 CFR Part 135), the section of federal aviation regulations that governs on-demand commercial aviation operations. FAA Part 135 certification applies to on-demand commercial air transportation operations, meaning flights that are not scheduled in advance and are arranged as needed for passengers or cargo. It covers charter flights, air taxi services, air ambulance flights, and certain cargo operations using airplanes with 30 or fewer passenger seats and a maximum payload capacity under 7,500 pounds.
Any U.S. operator that carries passengers or cargo for compensation or hire on a non-scheduled basis must obtain a Part 135 air carrier certificate from the Federal Aviation Administration. Part 135 sits between Part 91, which governs private non-commercial flying, and Part 121, which applies to scheduled major airlines. This positioning balances operational flexibility with strict safety and oversight requirements.
The certification process, operational procedures, and pilot qualifications mandated under Part 135 are what separate reputable charter and fractional programs from informal "grey charter" or cost-sharing arrangements. BlackJet Fractional Jet Ownership works exclusively with vetted, legally certificated Part 135 air carriers to operate flights for its Reserve Fleet and Equity Fleet clients, ensuring full compliance with federal regulations while still giving travelers flexibility through models such as floating fleet options in fractional ownership.
As of January 24, 2024, the FAA Flight Standards Service uses a standardized 5-phase, 3-gate certification process for new Part 135 applicants. The certification process has five distinct phases and three gates that an applicant must clear sequentially.
Phase 1 - Pre-application begins when an operator contacts the local Flight Standards District Office (FSDO). The applicant gains access to the Safety Assurance System (SAS) External Portal, submits a Pre-Application Statement of Intent form, and prepares initial documentation. Completion of this phase corresponds to Gate 1.
Phase 2 - Formal Application is where the applicant submits the official application package per FAA Order 8900.1, including enrollment documents, a management roster, compliance statements, draft manuals, and other documents. A Formal Application Meeting with FAA inspectors marks Gate 2 upon completion.
Phase 3 - Design Assessment involves a detailed review of all submitted manuals - the General Operations Manual, Training Manual, Maintenance Manual, and Minimum Equipment List - against federal regulations. The FAA must determine that the operator's paper system is properly designed before any live testing occurs.
Phase 4 - Performance Assessment is where the operator demonstrates real-world execution: proving tests, training events, dispatch procedures, and maintenance are all conducted under FAA observation. Gate 3 follows successful completion.
Phase 5 - Administrative Functions concludes the process. The FAA issues the Part 135 air carrier certificate along with operations specifications (OpSpecs), which spell out authorized aircraft types, kinds of operations (IFR/VFR, international), airports, and any limitations.
While Part 135 certification typically takes 6–12 months according to FAA guidance, current inspector workloads mean 12–24 months is common. The FAA has a two-year backlog for Part 135 certification applications in some regions. BlackJet partners with established, already-certified carriers so clients benefit from proven operators without waiting on these timelines.
Phase Number | Phase Name | Key Activities | Gate Completion |
|---|---|---|---|
Phase 1 | Pre-application | Initial inquiry, portal access, intent statement | Gate 1 |
Phase 2 | Formal Application | Submit application package, attend FAA meeting | Gate 2 |
Phase 3 | Design Assessment | FAA reviews manuals and compliance documentation | None |
Phase 4 | Performance Assessment | Demonstrate operations and training to FAA | Gate 3 |
Phase 5 | Administrative Functions | Receive certificate and operations specifications | Certification |
Earning a Part 135 certificate demands that an organization satisfy a detailed set of requirements across multiple domains. Part 135 operators must adhere to strict safety, maintenance, and training regulations before receiving - and maintaining - their certificate.
Operators must designate qualified individuals for key roles: Director of Operations, Chief Pilot, Director of Maintenance, and often a Safety Manager. Each must meet experience thresholds defined in 14 CFR Part 119 and FAA Order 8900.1. Part 135 includes basic and standard operator categories based on operational complexity, and management depth scales accordingly.
A General Operations Manual, Training Manual, Maintenance Control Manual, and company-specific Minimum Equipment List are required. These documents must match the scale of the operation, from a single-pilot light jet to a multi-aircraft fleet. Aircraft used in Part 135 operations must meet specific airworthiness and maintenance requirements, and the documentation must reflect that compliance in detail, much like a well-drafted aircraft fractional ownership sample contract clearly allocates responsibilities among co-owners.
Formal training curricula for pilots, flight attendants (if applicable), and maintenance personnel must include initial, recurrent, and upgrade training at defined intervals. Training requirements are prescribed by Part 135 subparts and verified during FAA oversight.
Safety Management Systems (SMS) are required for many Part 135 operators to manage risks, with core components including hazard reporting, risk assessment, safety assurance, and safety promotion. Part 135 operators undergo regular FAA oversight for compliance with these standards.
Part 135 requires minimum insurance coverage of $2 million per aircraft, and separate federal regulations require operators to maintain minimum insurance coverage of $300,000 for certain categories. Operators must also demonstrate adequate financial resources and hold proper registration to sustain safe operations—just as fractional owners need to plan carefully for the tax implications of fractional jet ownership alongside their insurance and risk-management strategies. They must also be familiar with DOT Economic Authority when offering services to the public, just as fractional owners should understand essential liability and insurance coverage in fractional jet ownership when evaluating risk exposure.
Part 135 pilot qualifications go well beyond those required for private flying under Part 91 - and this is a primary reason Part 135 operations have a lower accident rate than general aviation.
Part 135 requires pilots to have at least 500 total flight hours as a baseline for second-in-command roles, along with 100 cross-country and 25 night hours. Pilot-in-command positions on IFR operations demand 1,200 or more total hours, including 500 cross-country, 100 night, and 75 instrument hours. For turbojet airplanes or aircraft with 10 or more passenger seats, PICs must hold an Airline Transport Pilot (ATP) certificate with the appropriate type rating. At minimum, all Part 135 flight crew members need a commercial pilot certificate with an instrument rating and a current FAA medical certificate, while prospective owners should pay equal attention to essential contract terms in fractional jet ownership that govern how those crews are provided and managed.
Formal training includes initial instruction on aircraft systems, normal and emergency procedures, and company policies. Recurrent training every 6–12 months typically involves simulator sessions at Part 142 training centers for popular types like Citation, Phenom, or Gulfstream. Regular proficiency checks under 14 CFR §§ 135.293, 135.297, and 135.299 verify knowledge, instrument procedures, and line operations.
BlackJet Fractional Jet Ownership's pilot and crew standards require partner operators to apply hiring and training thresholds above regulatory minimums, often including additional captain experience requirements and third-party safety audits.
Part 135 operational procedures and maintenance rules keep day-to-day flights consistent, predictable, and safe for passengers. Part 135 operators must maintain professional service standards across every aspect of their operation, and these standards factor into the total cost of fractional jet ownership when you evaluate ongoing management and hourly fees.
Every Part 135 flight requires a formal review of weather, fuel reserves, performance calculations based on aircraft weight and runway conditions, and designation of alternate airports. These requirements are far more structured than Part 91 private operations, with stricter weather minimums and instrument approach criteria for certain operations.
Crew duty limits are regulated under Part 135 to prevent pilot fatigue. Operators must provide pilots with at least 10 consecutive hours of rest before each duty period. Maximum flight time is limited - for example, eight hours for single-pilot crews and ten hours for two-pilot crews in a 24-hour period - with quarterly rest protections layered on top.
Minimum Equipment Lists allow certain non-critical items to be temporarily inoperative under strict conditions. For instance, a non-essential cabin light may be deferred, but flight-critical avionics like altimeters or navigation radios must always be operational.
Part 135 mandates rigorous maintenance standards for aircraft, including scheduled inspections based on manufacturer guidance and FAA-approved programs. Part 135 operators must maintain rigorous aircraft maintenance records - missing log entries can force premature overhauls or grounding. Many quality operators voluntarily participate in flight data monitoring (FOQA), internal safety committees, and emergency response planning as additional layers of protection.
BlackJet selects partner operators with clean safety records and, where applicable, third-party ratings from organizations like ARGUS or Wyvern, so fractional owners benefit from multiple oversight layers.
Understanding the differences between Part 91, Part 135, and Part 121 is essential for anyone who books private aviation - whether for business travel or family trips.
Part 91 governs non-commercial flights without commercial activity. It covers owner-operated aircraft, corporate shuttles not held out to the public, training flights, and repositioning legs. It has fewer prescriptive rules on crew duty, training, and maintenance - flexible, but designed exclusively for non-revenue flying. Operating for profit under Part 91 while carrying passengers for compensation is generally illegal.
Part 135 governs for-hire operations: charter flights, air taxi service, and air ambulance flights. It requires operators to hold an air carrier certificate, maintain OpSpecs, complete formal training and checking, and operate under FAA oversight. Operational costs for Part 135 are higher than private aircraft operations, but the regulatory structure exists to protect other passengers and the broader public—and those expenses are a major component of the overall cost of fractional jet ownership when you compare it with charter or full ownership.
Part 121 regulates major airlines with scheduled passenger service - the most stringent regulatory tier, with comprehensive dispatch systems, mandatory SMS, and large aircraft capacity requirements.
Flying for compensation under Part 91 exposes operators to FAA enforcement actions, fines, and potential criminal penalties. BlackJet's fractional ownership programs are designed so that client revenue flights are conducted under properly certificated Part 135 carriers, while certain owner repositioning or maintenance legs may occur under Part 91 when appropriate and legal. For a deeper dive, see Essential FAA Regulations on Fractional Jet Ownership.
Many aircraft owners consider "getting their own 135," but the process demands significant money, time, and operational commitment. The market reality is sobering.
FAA guidance suggests 6–12 months for the certification process, but current workloads push timelines to 12–24 months. In busy regions, operators may wait over a year just to begin Phase 1. Part 135 certification costs can exceed $100,000 annually when accounting for manual development (often tens of thousands of dollars for professional writing), hiring required management personnel, initial and recurrent training for pilots and dispatch staff, and compliance infrastructure including software, record-keeping, and safety programs.
Indirect costs compound the challenge. Aircraft sit idle during proving runs and audits. Cash flow must sustain the company before any revenue flights begin - half or more of the first year may pass without direct income from operations, which is why many travelers instead focus on fractional jet ownership financing, costs, and benefits to access lift without building an entire operation.
U.S. law does not allow the Part 135 certificate itself to be sold as a stand-alone asset. Some buyers purchase entire charter companies to acquire an existing certificated operation, but the FAA must still review and approve management changes and operational expansions; similarly, fractional owners must follow defined processes when selling or transferring a fractional jet ownership share. Related documentation and compliance obligations transfer with the business.
For individuals or businesses flying 25–150 hours per year, accessing lift through fractional ownership is typically far more efficient than pursuing a standalone certificate, though it is important to compare fractional jet ownership vs membership programs to choose the right structure for your flying profile. BlackJet's model lets clients leverage existing certified carriers' infrastructure instead of building from scratch. Compare programs to see which approach fits your travel profile.
For clients who are not aviation professionals but rely on private flying for business and family travel, Part 135 certification functions as a direct risk-management tool.
Part 135 requires operators to maintain standardized pilot qualifications and recurrent training across their fleet, enforce maintenance schedules and documentation for each tail number, and operate control systems that monitor weather, performance, and crew duty limits for every flight. These requirements provide enhanced safety for charter clients, one of the clearest benefits of the rule set. This creates consistent, predictable safety - not dependent on any single individual's judgment.
Many fractional programs, including BlackJet, do not hold the operating certificate themselves but contract with vetted Part 135 carriers to operate the aircraft. Owners benefit from both the economic advantages of shared ownership and the safety culture of a commercial air carrier. The ability to fly alongside other passengers on a professionally managed platform eliminates much of the uncertainty of ad-hoc arrangements.
Consider a business traveler flying New York to Chicago to Dallas to Miami over three days. A Part 135 operator handles crew rest between duty cycles, alternate planning for weather diversions, and any maintenance checks due - the traveler simply sees a seamless itinerary.
Booking through informal channels or "grey charter" arrangements that operate under Part 91 for hire exposes clients to regulatory risk, possible insurance coverage gaps, and weaker safety oversight. BlackJet's due diligence confirms each partner's Part 135 status, safety record, and compliance history before adding them to its network. Learn more about BlackJet's Equity Fleet to see how this works in practice.
Whether booking a charter or enrolling in a jet program, private flyers should verify several key items before committing:
Certificate and OpSpecs: Confirm that the operator holds an active Part 135 air carrier certificate. Request the certificate number and verify it through the FAA website or reputable databases.
Safety and enforcement history: Review incident and accident records and any FAA enforcement actions through publicly available records on the agency's website.
Third-party audits: Ask whether the operator is rated by organizations like ARGUS, Wyvern, or IS-BAO. These are not regulatory requirements but strong positive indicators of a safety-conscious operation.
Pilot standards: Inquire about minimum hours for captains and seconds-in-command, type ratings, and how often recurrent training is conducted. Determine whether crews are dedicated to specific aircraft types or rotate widely.
Aircraft condition: Check year of manufacture, total airframe time, interior refurbishment dates, and avionics upgrades. Confirm the aircraft appears on the operator's OpSpecs and that maintenance follows a Part 135-approved program.
BlackJet simplifies this entire process by conducting continuous operator vetting, reviewing performance data, and aligning clients with aircraft and crews that comply with both regulatory and internal standards, while educational resources such as a fractional jet ownership terminology glossary help prospective owners understand how these programs are structured.
Part 135 applies to aircraft with 30 or fewer passenger seats and a maximum payload capacity under 7,500 pounds. Part 135 covers operations for aircraft with 30 or fewer seats. This includes many light jets, turboprops, and small cabin aircraft commonly used in private charter and fractional ownership programs.
While FAA guidance suggests 6–12 months, current workloads and backlogs often extend the timeline to 12–24 months or longer, depending on the region and completeness of the application.
No, the certificate itself is not a transferable asset. Operators seeking to acquire a Part 135 certificate generally purchase an existing company holding the certificate, subject to FAA approval of management and operational changes.
Pilots must have at least 500 total flight hours for second-in-command roles. Pilot-in-command for IFR operations requires 1,200 or more hours, including specific cross-country, night, and instrument flight time. Captains on larger aircraft must hold an ATP certificate with appropriate type ratings.
Part 135 certification ensures standardized pilot training, rigorous maintenance programs, and FAA oversight, providing fractional owners with enhanced safety, regulatory compliance, and operational reliability compared to non-certified or informal flying arrangements.
FAA Part 135 certification is the legal and safety foundation of reputable charter and fractional operations, ensuring compliance with federal aviation regulations, robust operational procedures, and elevated pilot qualifications. Understanding whether a flight operates under Part 91, Part 135, or Part 121 is essential to managing risk - especially when booking on-demand charter or structuring corporate travel policies.
Fractional aircraft ownership remains one of the most efficient ways to leverage Part 135 standards without the cost and complexity of securing your own certificate; understanding fractional jet ownership as an investment, with its benefits and considerations, is essential before you commit. Ready to explore the smarter way to fly private? Visit FractionalJetOwnership.com to learn how BlackJet's Equity Fleet and Reserve Fleet options deliver predictable access to Part 135-operated aircraft with white-glove trip management.
