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Airports are classified based on the type of air carrier operations they serve. Class I airports are those that serve all types of scheduled operations of air carrier aircraft designed for at least 31 passenger seats, and any other type of air carrier operations. These airports hold an AOC (Airport Operating Certificate) and must comply with all Part 139 requirements. Class I airports are the most common airport type, with 177 in Pocket Planes, a popular game.
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What You'll Learn
- Class I airports serve large air carrier aircraft with at least 31 passenger seats
- Airports with Part 139 Airport Operating Certificates (AOCs) are categorised as Class I
- Class I airports must comply with all Part 139 requirements
- Class II airports serve small air carrier aircraft and unscheduled operations of large air carrier aircraft
- Class IV airports serve unscheduled passenger operations of large air carrier aircraft
Class I airports serve large air carrier aircraft with at least 31 passenger seats
Airports are classified into four categories based on the type of air carrier operations they serve. Class I airports serve large air carrier aircraft with at least 31 passenger seats. These airports hold an AOC (Airport Operating Certificate) and can accommodate any air carrier operations covered under Part 139. As a result, the operators of these airports must adhere to all Part 139 requirements, which include both operational and safety standards.
Class I airports are designed for large air carrier aircraft operations and can handle a significant volume of passenger traffic. The classification of an airport as Class I indicates its capacity to manage larger aircraft and a higher number of passengers compared to other classes of airports. These airports typically have the necessary infrastructure, such as longer runways and larger terminal facilities, to accommodate bigger planes and a greater number of passengers.
In contrast, Class II airports serve scheduled operations of small air carrier aircraft and unscheduled operations of large air carrier aircraft. However, they are not authorised to serve scheduled large air carrier operations. Class II airports have different operational and safety requirements compared to Class I airports.
Class III airports are another category that serves only scheduled operations of small air carrier aircraft. These airports are typically smaller in scale and may have shorter runways or more limited facilities. The certification requirements for Class III airports may vary, and certain airports in Alaska are exempt from specific certification standards.
Class IV airports are those certificated to serve unscheduled passenger operations of large air carrier aircraft. Similar to Class III airports, they are not authorised to serve scheduled large or small air carrier aircraft. The classification of airports ensures that they adhere to the necessary safety and operational protocols based on the type of aircraft and operations they serve.
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Airports with Part 139 Airport Operating Certificates (AOCs) are categorised as Class I
Airports with Part 139 Airport Operating Certificates (AOCs) fall into one of four classes: Class I, II, III, or IV. The class of an airport depends on the type of air carrier operations served.
Class I airports serve all types of scheduled operations of air carrier aircraft designed for at least 31 passenger seats (large air carrier aircraft) and any other type of air carrier operations. These airports currently hold an AOC and may serve any air carrier operations covered under Part 139. As such, the operators of these airports must comply with all Part 139 requirements.
Class II airports serve scheduled operations of small air carrier aircraft and unscheduled operations of large air carrier aircraft. They are not permitted to serve scheduled large air carrier operations. Class II airports are required to comply with more operational and safety requirements than were required of Limited AOC holders. Airports that currently hold a Limited AOC or have maintained an AOC after losing scheduled large air carrier aircraft service are either Class II or Class IV airports.
Class III airports are those that will be newly certificated and serve only scheduled operations of small air carrier aircraft. Airport certification requirements are not applicable to certain airports in the State of Alaska.
Class IV airports serve only unscheduled operations of large air carrier aircraft. Air carrier operations are so infrequent at these airports that, in the past, the FAA only required them to comply with some Part 139 requirements. This continues to be the case, but new operational requirements have been added along with modifications to the airport certification process and other administrative changes.
The process of obtaining an Airport Operating Certificate (AOC) involves the airport operator contacting the appropriate FAA Regional Airports Division Office to initiate the application process. The FAA reviews the application and associated documentation and may conduct an inspection of the airport for compliance with Part 139 requirements. If the application meets the provisions of Part 139 and the airport is in compliance, the FAA will issue an AOC.
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Class I airports must comply with all Part 139 requirements
Airports in the US that serve certain air carrier operations are required to be certified by the Federal Aviation Administration (FAA). Under 14 CFR Part 139, the FAA issues Airport Operating Certificates (AOCs) to allow airport operators to serve scheduled passenger-carrying operations of an air carrier operating aircraft with more than nine seats, with some exceptions for airports in Alaska.
Class I airports are those that serve all types of scheduled operations of air carrier aircraft designed for at least 31 passenger seats (large air carrier aircraft) and any other type of air carrier operations. These airports hold an AOC and may serve any air carrier operations covered under Part 139. As such, Class I airports must comply with all Part 139 requirements.
Part 139 includes various safety and emergency response requirements, such as those related to signs, lights and markings, runway safety, aircraft rescue and firefighting, aviation fuelling safety, snow and ice control, and wildlife hazard management. Airports certified under Part 139 must also develop and implement a safety management system (SMS) program to identify and address potential hazards and risks.
Class I airports are subject to the same Part 139 requirements as other airport classes, but the specific compliance measures may vary depending on the airport's characteristics and operations. For example, Class II airports, which serve scheduled operations of small air carrier aircraft and unscheduled operations of large air carrier aircraft, have different operational and safety requirements compared to Class I airports.
Overall, the Part 139 certification process ensures that airports meet the necessary safety and operational standards to serve different types of air carrier operations, with Class I airports being equipped to handle a wider range of operations compared to other classes.
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Class II airports serve small air carrier aircraft and unscheduled operations of large air carrier aircraft
Airports are classified into four categories based on the type of air carrier operations they serve: Class I, II, III, and IV. Class II airports serve scheduled operations of small air carrier aircraft and unscheduled operations of large air carrier aircraft. They are not permitted to serve scheduled large air carrier operations.
Class II airports are required to comply with more operational and safety requirements than were previously mandated for Limited AOC (Airport Operating Certificate) holders. These new requirements are in addition to modifications made to the airport certification process and other administrative changes.
Airports that currently hold a Limited AOC, or those that have maintained an AOC after losing scheduled large air carrier aircraft service, are classified as either Class II or Class IV airports. Class IV airports serve unscheduled passenger operations of large air carrier aircraft and cannot serve scheduled large or small air carrier aircraft.
Class III airports, on the other hand, serve only scheduled operations of small air carrier aircraft. Certain airports in the state of Alaska are exempt from airport certification requirements.
In terms of the number of airports in each class, Class I airports are the most common, with 177 in total. Class II airports, however, are not mentioned in terms of their quantity or percentage distribution worldwide or by region.
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Class IV airports serve unscheduled passenger operations of large air carrier aircraft
Airports are classified into four categories based on the type of air carrier operations they serve. Class IV airports are those that serve only unscheduled operations of large air carrier aircraft. These airports typically hold a Limited AOC (Airport Operating Certificate) or have maintained an AOC after losing scheduled large air carrier aircraft service.
Class IV airports cater to unscheduled passenger operations of large air carrier aircraft. This means that the departure time, departure location, and arrival location are specifically negotiated with the customer or the customer's representative. These airports may include shared-use airports, which are government-owned and co-located with another airport, sharing movement and safety areas.
While air carrier operations at Class IV airports are infrequent, they must still comply with certain requirements. These airports are subject to operational and safety requirements under FAA Part 139, including updated guidance for airport emergency plans and extinguishing agent requirements. Additionally, Class IV airports must meet common requirements across all airport classes, such as maintaining a record-keeping system and providing new personnel training.
The classification of airports is subject to change, and an airport that no longer serves scheduled operations of large air carrier aircraft may be reclassified as a Class II, III, or IV airport, depending on the type of air carrier operations it currently serves. This flexibility in classification allows for dynamic adjustments based on the evolving nature of air carrier operations at different airports.
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Frequently asked questions
A Class I airport serves all types of scheduled operations of air carrier aircraft designed for at least 31 passenger seats (large air carrier aircraft) and any other type of air carrier operations.
Airports are classified into four classes: Class I, II, III, and IV.
A Class II airport serves scheduled operations of small air carrier aircraft and unscheduled operations of large air carrier aircraft.
A Class III airport serves only scheduled operations of small air carrier aircraft.
A Class IV airport serves unscheduled passenger operations of large carrier aircraft and cannot serve scheduled large or small air carrier aircraft.
