Other Airport Operations (U.S.) — NAICS 488119

An investor's primer for both public-market and private investors.

1. Overview

"Other Airport Operations" is the federal statistical bucket for the businesses that run airports and service the aircraft on them — everything from operating a whole airfield to fueling a business jet, hauling baggage, handling cargo, and renting hangar space. In plain terms: the ground-side machinery that lets planes land, park, load, and take off. It explicitly excludes the airlines themselves and excludes air-traffic control (a separate code).[1]

Why this matters to an investor: airports are classic infrastructure — local monopolies with long-lived assets, tollbooth-style cash flows, and demand tied to the broad economy. But the U.S. structure is unusual. Almost every commercial airport is owned by a state or local government or a public airport authority, so the "airport operator" itself is usually not something you can buy.[2] The investable money is in the private layers that sit on top of the public land: fixed base operators (FBOs — the private-jet service stations of aviation), ground- and cargo-handling contractors, concession operators, and increasingly private consortia that finance and run individual terminals.

• Public-market route: thin and indirect. There is no pure-play U.S.-listed airport operator. Exposure comes through diversified parents (e.g., General Dynamics owns FBO chain Jet Aviation; Ferrovial holds a stake in a JFK terminal) or foreign-listed services and airport companies. See Section 4.
• Private route: this is where the action is. Private-equity infrastructure funds have rolled up the FBO business and are financing terminals; municipal airport revenue bonds are the most retail-accessible way to lend to U.S. airports. See Section 10.

Forward-looking judgment: the long-term setup is constructive because air travel needs scarce, hard-to-replace infrastructure. But near-term returns depend more on airport quality, airline mix, contract terms, capital spending, and financing costs than on passenger growth alone.

2. What it is, and how it's structured

In scope (NAICS 488119): operating civil, national, or international airports and flying fields; supporting airport operations through hangar rental and aircraft parking; and baggage- and cargo-handling services. The Census illustrative examples explicitly include airport operators, fixed base operators, hangar and aircraft-parking services, baggage and cargo handling, and runway maintenance. FBO activity falls here when the establishment's primary business is airport operation or support.[1]

What it excludes (and where those activities live instead) — this matters because airport activity is spread across many codes:[1]

• Air traffic control → NAICS 488111
• Other support activities for air transportation (contract aircraft maintenance, aircraft ferrying) → NAICS 488190
• Factory overhaul/rebuilding of aircraft → NAICS 336411
• Wholesaling fuel at airports → NAICS 424720 (an FBO's retail into-plane fuel sale is in-scope here; fuel wholesaling is not)
• Airport janitorial services → NAICS 561720
• Contract food service at airports → NAICS 722310 (so most terminal restaurants sit in food-service, not here)
• The airlines themselves → NAICS 481 (4811 scheduled, 4812 nonscheduled)

So airport retail, food, parking, security, and much ground handling can appear in adjacent industries rather than in 488119 — a reason the federal 488119 numbers undercount the visible airport economy (Section 3).

Ownership mix — the defining feature. The U.S. has roughly 5,000 public-use airports, about 3,300 of which the Federal Aviation Administration (FAA) deems significant enough for the National Plan of Integrated Airport Systems (NPIAS), and 487 of which are commercial-service airports with scheduled passenger flights.[3] The great majority are owned and operated by city, county, state, or multi-jurisdictional airport authorities (for example the Port Authority of New York and New Jersey, or Los Angeles World Airports). The federal government does not own or run them. Full privatization stays unusual — the FAA's Airport Investment Partnership Program listed just two approved airports as of February 2026.[2] Private companies operate within that public framework, and the typical stack looks like this:

1. A public sponsor owns the airport or airfield.
2. Airlines sign use, lease, or terminal agreements.
3. Private operators run terminals, concessions, FBOs, or specialized services.
4. Airport revenue funds operations, debt service, and capital projects.

The key investment distinction: private investors usually own rights to contracted cash flows, not the underlying airport land.

3. How big it is

Federal business statistics for NAICS 488119:

Reference years differ, so receipts (2022) should not be compared directly with same-year payroll. Within their own years, the figures imply average receipts of roughly $13 million per firm and average pay near $38,000 per employee — a picture of many small, labor-heavy operators. Consistent with that, market concentration is low: the four largest firms account for about 26% of revenue, the top eight 36.4%, the top twenty 54.7%, and the top fifty 71.2%; the Herfindahl-Hirschman Index (HHI, a standard concentration gauge on a 0–10,000 scale where anything under ~1,500 is considered "unconcentrated") is just 247.1.[4] A long tail of local FBOs and handlers sits beneath a few national chains.

The undercount — read this before using the headline numbers. The Economic Census and County Business Patterns (CBP) count private employer businesses; they largely exclude government entities, and also exclude self-employed individuals and nonemployer businesses (no paid staff).[5] Because the biggest U.S. airport operators are governments (public airport authorities), and because many small airport-service operators are tiny or nonemployer shops, the $14.3 billion of receipts and ~141,000 employees capture mostly the private, employer slice — FBOs, contract handlers, private terminal and management firms — and not the payroll and operations of the government-run airports that dominate the sector. For scale, industry group Airports Council International–North America (ACI-NA) estimates the 487 U.S. commercial airports support a $1.8 trillion total economic footprint (a broad multiplier figure, not directly comparable to the receipts above).[3] Treat the federal 488119 numbers as measuring the private airport-services economy, not the whole of U.S. aviation infrastructure. The federal file also does not report industry-wide capacity utilization, operating margins, capital spending, or valuation multiples — where those appear below they come from cited industry sources, not the Census.

4. The investable universe

There is no pure-play, U.S.-listed airport operator. The closest public exposures are diversified parents or foreign-listed companies with specific U.S. airport ties; the economically important owners are mostly private.

Public-market exposure (indirect):

(Note: much airport food service technically sits in NAICS 722310, and concessions/retail in other codes, not 488119 — HMSHost, SSP, Fraport USA and Paradies are included because investors think of them as airport businesses.)

Major private / other owners (the real weight of the industry):

• FBO chains (private jets): Signature Aviation (~200 locations worldwide; taken private in 2021 for ~$4.7 billion by Blackstone, Global Infrastructure Partners, and Cascade Investment)[13]; Atlantic Aviation (~100+ North American locations; bought by KKR for $4.47 billion in 2021 and combined with Ross Aviation, with a majority stake reported as agreed for sale to Apollo Global Management at roughly $10 billion in 2026 — confirm current ownership in diligence)[14]; plus Jet Aviation (General Dynamics), Million Air, Modern Aviation, and Sheltair.
• Ground and cargo handling: Menzies Aviation (owned by Agility; merged with National Aviation Services to become one of the world's largest handlers — ~254 airports, 58 countries)[15]; WFS (SATS); Swissport; dnata (Emirates Group).
• Concessions/retail: HMSHost (Avolta), Paradies Lagardère (~$1.6 billion in sales across 700+ stores at 90+ North American airports)[12], SSP America, Areas, Fraport USA.[10]
• Terminal / airport concessionaires (public-private partnerships, "P3s"): JFK New Terminal One — a ~$9.5 billion privately financed terminal led by Ferrovial with Carlyle, JLC Infrastructure, and Ullico[8][16]; the privately financed LaGuardia Terminal B, run by LaGuardia Gateway Partners (a Vantage/Skanska/Meridiam consortium)[16]; and Aerostar Airport Holdings, which won a 40-year lease of San Juan's Luis Muñoz Marín airport in Puerto Rico — the one full-airport privatization success to date.[9]

Public airport authorities are not equities, but their revenue bonds give more direct exposure to airport cash flows than any listed stock (Section 10).

5. How the money works

Owners in this industry earn very differently depending on which layer they occupy.

Airport operators (mostly government authorities — the conceptual core). Their revenue splits into two buckets, and airlines watch the resulting cost per enplanement (CPE — total airline charges divided by boarding passengers) closely:

• Aeronautical revenue — from airlines and aircraft: landing fees (charged per 1,000 lbs of aircraft weight), terminal and gate rents, apron/parking fees, and fuel-flowage fees, all set under multi-year airline-use agreements.
• Non-aeronautical revenue — from passengers and tenants: parking (often the single largest non-aero line), retail and food concessions (paid as a percentage of sales against a minimum annual guarantee), rental-car fees, advertising, lounges, hotels, and property/land rents.[17]
• Two federally controlled tools sit alongside these: Passenger Facility Charges (PFCs — a per-passenger ticket surcharge, capped at $4.50) for approved capital projects, and federal Airport Improvement Program (AIP) grants.[18][19] These are capital-financing tools, not ordinary operating revenue, so investors should separate recurring operating cash flow from project funding. Big capital projects are funded largely by airport revenue bonds (municipal debt repaid from airport cash flows). The key volume driver is enplanements (passenger boardings); the key mix metric is the share of revenue that is non-aeronautical, since a higher non-aero share means more profit per passenger and lower airline costs.

Fixed base operators (FBOs — the private-jet layer, and the most investable slice). An FBO's profit engine is the fuel margin: it buys jet fuel wholesale and sells it into the aircraft ("into-plane") at a markup, so earnings scale with gallons uplifted × margin per gallon. On top of that come hangar rent, ramp and overnight parking fees, de-icing, and ground handling. Because a busy field often has only one or two FBOs — each holding a long-term airport lease — a good location carries real pricing power. This is why private-equity infrastructure funds have paid airport-like multiples for FBO chains.

Ground- and cargo-handling contractors. They are paid per aircraft turn or per flight by airlines. The work is labor-intensive and competitively bid, so margins are thin and scale, reliability, and safety records matter more than pricing power.

Terminal / airport concessionaires (P3s). Under a long-term lease they collect a blend of aeronautical charges and concession income. Deals are structured either as demand-risk (the operator's return rises and falls with passenger traffic, as at JFK New Terminal One) or availability-payment (the public sponsor pays a fixed amount for keeping the facility open and performing).

The useful operating metrics across all layers: passenger enplanements, aircraft movements, cargo landed weight, revenue per enplaned passenger, parking occupancy and concession spend, FBO fuel throughput and hangar occupancy, airline concentration, and debt-service coverage. The through-line: this is a volume-and-utilization business with long-lived, capital-heavy assets, and the returns are steadiest where a location confers local monopoly.

6. What drives demand

• Passenger air-travel volume. Enplanements track GDP, employment, and consumer and business travel budgets — the master driver for airport operators and concessions. The FAA publishes passenger-boarding and cargo data that serve as the national activity indicators.[25]
• Business- and private-jet activity. The lifeblood of FBOs. Private-flight demand surged after 2020 and has stayed elevated, powering FBO fuel volumes and the PE roll-up.
• Air-cargo volumes. E-commerce and time-sensitive freight drive cargo-handling work and belly-cargo throughput.
• Airline network decisions. Where carriers add capacity, base hubs, upgauge aircraft, or pull down service directly changes an airport's traffic — a risk airports don't control.
• Passenger spend and dwell time. Non-aeronautical income rises with retail spend per passenger, longer security-side dwell times, and parking and rental-car use.
• The infrastructure-investment cycle. U.S. airport capital spending hit a record ~$28 billion in fiscal 2025, and the sector estimates ~$173.9 billion of needs over 2025–2029 — a multi-year tailwind for the construction, management, and services firms that ring the terminal.[23]

Air travel is durable but cyclical. ACI-NA reported that North American passenger traffic slipped 0.7% in 2025 versus 2024 (domestic down 1.0%, international up 0.3%) — a reminder that even a structurally growing sector has flat and down years.[24]

7. Regulation

Airports are among the more heavily regulated infrastructure assets, and the rules directly shape returns:

• FAA safety oversight. Commercial airports serving specified air-carrier operations operate under Part 139 safety certificates (14 CFR Part 139).[21]
• Grant Assurances. Any airport that has taken federal AIP grants is bound by continuing Grant Assurances covering safety, access, civil rights, and revenue use — most importantly Assurance 24 (set fees so the airport is as self-sustaining as possible) and Assurance 25 (all airport revenue must stay on the airport — "revenue diversion" to unrelated municipal uses is prohibited).[22] This ring-fences airport cash flows, which is precisely what makes airport revenue bonds creditworthy.
• PFC and AIP. The $4.50 PFC cap has been unchanged since 2000, a persistent industry complaint because inflation has eroded its value; PFC use is governed by FAA regulation (14 CFR Part 158), and both PFCs and AIP grants are limited to approved purposes.[18][19]
• Federal infrastructure funding. The Infrastructure Investment and Jobs Act (IIJA, the Bipartisan Infrastructure Law) directs $15 billion to airport infrastructure grants over five years, on top of the regular AIP — funding terminals, runways, safety, sustainability, and ground access.[20]
• Privatization is deliberately narrow. The Airport Investment Partnership Program (formerly the Airport Privatization Pilot Program) lets a public sponsor lease or sell an airport to a private operator, but it is capped and lightly used — only two airports participate as of 2026, with San Juan the clearest success.[2] This legal friction is a big reason full U.S. airport privatization is rare and P3s cluster at the terminal level instead.
• Security, environment, and local control. The Transportation Security Administration (TSA) runs passenger and baggage screening; noise, emissions, accessibility, environmental review, and local land-use rules constrain expansion. FBO-level rules add airport "minimum standards," lease terms, and state and federal fuel taxes.

Regulation can protect incumbent infrastructure, but it also caps pricing flexibility and can delay projects.

8. Competitive dynamics and consolidation

Two very different competitive worlds sit inside this one code.

The airport-operator layer is a set of local monopolies — one dominant airport per metro — but because they are governmental and revenue-ring-fenced, they don't compete for investors and can't be bought in the U.S. Competition there is indirect: nearby metros competing for connecting hubs, and airlines negotiating gate access. A large airport has monopoly-like physical positioning, yet its operator stays constrained by public oversight, airline bargaining power, and long-term contracts.

The private layers are consolidating hard, which is where the investment story lives:

• FBOs: a decade-long private-equity roll-up has concentrated a once-fragmented business into a few national chains (Signature, Atlantic, Jet Aviation), with assets trading between sponsors — KKR combining Atlantic with Ross Aviation and reportedly selling on to Apollo, and Blackstone/GIP/Cascade holding Signature.[13][14]
• Ground handling: globally scaling and consolidating (Menzies/Agility, Swissport, dnata, WFS/SATS), competing on cost and reliability.[15]
• Concessions: a handful of groups (Avolta/HMSHost, Paradies Lagardère, SSP, Areas, Fraport USA) win multi-year, bid-based contracts against minimum guarantees.[12]
• Terminal P3s: infrastructure investors (Ferrovial, Carlyle, Vantage, Meridiam, GIP) compete to design-build-finance-operate individual terminals, as at JFK New Terminal One and LaGuardia Terminal B.[16]

The low industry-wide HHI of 247.1[4] reflects the long tail of small operators; the consolidation is happening within segments, not across the whole code.

9. Risks

• Cyclicality and shock exposure. Demand falls with recessions, fuel spikes, geopolitical events, and travel shocks; the pandemic was the extreme case, hitting aeronautical and concession revenue at once.
• Airline concentration. A few airlines drive most traffic at any given field, and a hub can depend heavily on one or two carriers whose network choices are outside the operator's control.
• Capital intensity and rates. Terminal, runway, baggage, and security projects can run over budget and behind schedule; PE-owned FBO chains and P3 terminals carry heavy debt, so higher interest rates raise refinancing costs and compress equity returns.
• Fuel-margin dependence (FBOs). Earnings lean on into-plane fuel; fuel-price volatility, the shift toward sustainable aviation fuel (SAF), and eventual electrification of light aircraft could pressure the core margin over time.
• Regulatory and political limits. The frozen PFC cap, revenue-use restrictions, and the narrow privatization program constrain how much value private capital can extract; local politics can block expansion or terminal P3s.
• Contract and counterparty risk. Handlers, concessionaires, and FBOs depend on airport leases and airline agreements; losing a bid or a hub airline can erase a location's economics, and sponsors or tenants may renegotiate or defer.
• Operational and labor risk. Ground handling is labor-intensive, unionized in places, and exposed to wage inflation, ramp-safety incidents, weather, wildlife, cyberattacks, and outages.
• Illiquidity. Private airport investments often have long holding periods and thin exit markets.
• Data risk. Federal business statistics understate activity outside employer establishments and miss the public-airport ecosystem entirely (Section 3).[5]

10. How to invest, and the outlook

Public-market routes (limited and indirect). There is no clean U.S. airport-operator stock, so treat listed names as exposure proxies, not pure measures of NAICS 488119. The practical options: diversified parents with an airport-services arm (General Dynamics via Jet Aviation)[7]; the closest listed U.S.-terminal exposure (Ferrovial, ~49% of JFK New Terminal One)[8]; foreign-listed services companies (SATS/WFS, Avolta/HMSHost, SSP Group, Fraport/Fraport USA)[10][11][12]; and — for genuine "own-the-airport" economics — foreign airport-operator equities and ADRs (Mexico's ASUR, GAP, and OMA; Europe's Aéroports de Paris, Fraport, AENA), which give you the tollbooth model but mostly on non-U.S. assets (ASUR is the exception, via its 60% of San Juan's operator).[9] Reserve any discussion of tickers, multiples, and yields to this bucket; the underlying U.S. industry is not a stock-market sector. When you do screen these names, focus on ownership percentages, contract length and renewal terms, airline concentration, aeronautical-vs-non-aeronautical mix, revenue-sharing formulas, capital commitments and construction risk, and debt maturity.

Private and fixed-income routes (where U.S. exposure actually lives).

• Municipal airport revenue bonds — including general airport revenue bonds (GARBs) and PFC-backed bonds — are a large, liquid, retail-accessible way to lend to U.S. airports. They are backed by the ring-fenced revenue that Grant Assurance 25 protects, which underpins their credit quality; underwrite the specific airport's passenger trends, airline agreements, debt-service coverage, capital plan, and sponsor strength.[22]
• Private-equity and infrastructure funds (Blackstone, Apollo, KKR, GIP/BlackRock, Carlyle, Ferrovial, Meridiam, Vantage) own the FBOs, terminals, and concessions outright; access is via fund commitments or the listed alternative-asset managers that run them. Underwriting should stress downside passenger scenarios, minimum-revenue protections, termination and construction-completion terms, capex obligations, and refinancing assumptions.

Outlook (forward-looking judgments, not guarantees). Several currents point the same way. A record capital cycle — ~$28 billion of annual spending against ~$174 billion of five-year needs — should sustain demand for airport construction, management, and services well into the decade, and ACI-NA projects U.S. enplanements rising from roughly 1 billion in 2025 to ~1.4 billion by 2040 and ~1.7 billion by 2050 (industry-association estimates, not certainties).[23] Cash-strapped public sponsors are likely to keep reaching for private capital via terminal P3s, extending the JFK/LaGuardia template to more cities. The FBO roll-up has room to run as sponsors trade assets and consolidate the remaining independents, and private-jet and air-cargo demand remain structurally supportive. Longer-term themes — SAF adoption, biometrics and self-service, and eventual light-aircraft electrification — will reshape cost structures. The main near-term swing factors are the air-travel cycle and interest rates, which bear directly on the leveraged private owners that dominate the field. The classic mistake is treating passenger growth as sufficient: contract structure, capex discipline, airline dependence, and public-sector constraints determine how much of that growth becomes investor cash flow. Net: a defensive, infrastructure-flavored industry with steady long-run demand, but one where U.S. investors mostly participate through debt and private funds rather than through a listed operator.

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Sources

1. U.S. Census Bureau. "2022 NAICS Definition — 488119 Other Airport Operations" (definition, illustrative examples, cross-references). 2022. https://www.census.gov/naics/?input=488119&year=2022&details=488119 (definition text mirrored at https://naics.askkodiak.com/naics/2022/488119)
2. Federal Aviation Administration. "Airport Investment Partnership Program" (U.S. airports overwhelmingly owned by state/local governments and public authorities; two participating airports as of 2026). 2026. https://www.faa.gov/airports/airport_compliance/privatization
3. Federal Aviation Administration, "Airport Categories" / NPIAS, and Airports Council International–North America economic-impact figures (487 commercial-service airports; ~3,300 NPIAS airports; ~5,000 public-use airports; $1.8 trillion economic footprint). 2024–2025. https://www.faa.gov/airports/planning_capacity/categories; https://airportscouncil.org/press_release/new-aci-na-reports-highlight-economic-impact-and-growing-infrastructure-needs-of-u-s-airports/
4. U.S. Census Bureau. "2022 Economic Census — Concentration by Largest Firms, NAICS 488119" (receipts $14.26B; 1,071 firms; CR4 26%, CR8 36.4%, CR20 54.7%, CR50 71.2%; HHI 247.1). 2022. [Histometrics ground-truth dataset, stats-488119] https://www.census.gov/programs-surveys/economic-census/data/tables.html
5. U.S. Census Bureau. "County Business Patterns 2023 — NAICS 488119" (2,373 establishments; 140,874 employees; annual payroll $5.40B; Q1 payroll $1.34B) and CBP methodology (covers employer establishments; excludes most government, self-employed, and nonemployer businesses). 2023–2025. [Histometrics ground-truth dataset, stats-488119] https://www.census.gov/data/datasets/2023/econ/cbp/2023-cbp.html; https://www.census.gov/programs-surveys/cbp/technical-documentation/methodology.html
6. U.S. Small Business Administration. "Table of Small Business Size Standards — NAICS 488119" ($40 million average annual receipts). 2023. [Histometrics ground-truth dataset, stats-488119] https://www.sba.gov/document/support-table-size-standards
7. General Dynamics. "Jet Aviation — About / FBO operations." 2019–2026. https://www.gd.com/Articles/2019/02/19/jet-aviation-acquires-full-ownership-san-juan-fbo; https://en.wikipedia.org/wiki/Jet_Aviation
8. Ferrovial. "Integrated Annual Report 2025" (Form filed with SEC; ~49% equity-accounted interest in JFK New Terminal One, concession to 2060) and "Ferrovial — Nasdaq Listed (FER)." 2026. https://www.sec.gov/Archives/edgar/data/1468522/000162828026011797/iai2025ferrovial.htm; https://www.ferrovial.com/en-us/fer-nasdaq-listed/
9. Grupo Aeroportuario del Sureste (ASUR). "2025 Form 20-F" (60% interest in Aerostar Airport Holdings, operator of San Juan's Luis Muñoz Marín airport under the FAA privatization program; U.S. airport commercial-services programs). 2026. https://www.sec.gov/Archives/edgar/data/1123452/000110465926044448/asurb-20251231x20f.htm
10. Fraport AG. "Fraport USA — U.S. Airports" (retail/concession management at Baltimore/Washington, Dulles, Reagan National, Cleveland, Nashville, Newark, JFK). 2026. https://www.fraport.com/en/business-areas/international-activities/us-airports.html; https://www.fraport.com/en/investors/the-fraport-share.html
11. SATS Ltd. "SATS Completes Acquisition of Worldwide Flight Services" (€1.3 billion; ~200 stations, 23 countries). 2023. https://www.sats.com.sg/investors/sats-wfs-acquisition/sats-completes-acquisition-of-worldwide-flight-services
12. Lagardère / Paradies Lagardère and Avolta/HMSHost — North American airport concessions (Paradies: ~$1.6 billion sales, 700+ stores, 90+ airports). 2023–2026. https://www.freemanspogli.com/news/paradies-to-be-acquired-by-lagardere-travel-retail-to-form-a-combined-800-million-north-american-airport-concessions-company/
13. Blackstone. "Blackstone, Cascade and Global Infrastructure Partners Announce Terms of a Recommended Offer for Signature Aviation plc" (~$4.7 billion take-private; ~200 locations). 2021. https://www.blackstone.com/news/press/blackstone-cascade-and-global-infrastructure-partners-announce-terms-of-a-recommended-offer-for-signature-aviation-plc/
14. Atlantic Aviation / Flying Magazine / Aviation Week. "Atlantic Aviation and Ross Aviation Complete Business Combination" (2022); KKR's $4.47B acquisition (2021); Apollo agrees to buy majority stake (~$10B, 2026). 2021–2026. https://www.atlanticaviation.com/news/atlantic-aviation-and-ross-aviation-complete-business-combination-acquire-three-former-tac-air-fbos/; https://www.flyingmag.com/fbo-market-sees-strong-interest-from-private-equity-funds/; https://aviationweek.com/business-aviation/airports-fbos-suppliers/ma-business-aviation-all-fbos-no-oems
15. Menzies Aviation / Agility. "Agility Completes £763 Million Acquisition of Menzies Aviation" (merged with NAS; ~254 airports, 58 countries). 2022. https://menziesaviation.com/news/agility-completes-763-million-acquisition-of-menzies-aviation/
16. Bipartisan Policy Center / Steer and LaGuardia Gateway Partners. "U.S. airport public-private partnerships — JFK New Terminal One (~$9.5B; Ferrovial, Carlyle, JLC, Ullico) and LaGuardia Terminal B (Vantage/Skanska/Meridiam)." 2022–2026. https://bipartisanpolicy.org/article/eight-airport-public-private-partnerships-taking-off-in-the-u-s/; https://laguardiab.com/our-story/terminal-b-transformation/
17. Airports Council International (ACI) World. "Airport economics — aeronautical vs non-aeronautical revenue." 2024–2025. https://blog.aci.aero/airport-economics/maximizing-non-aeronautical-revenues-key-to-airport-financial-sustainability/
18. Federal Aviation Administration. "Passenger Facility Charge (PFC) Program" ($4.50 cap; 14 CFR Part 158). 2024–2026. https://www.faa.gov/airports/pfc; https://www.ecfr.gov/current/title-14/chapter-I/subchapter-I/part-158
19. Federal Aviation Administration. "Overview: What Is AIP and What Is Eligible?" (Airport Improvement Program). 2023. https://www.faa.gov/airports/aip/overview
20. Federal Aviation Administration. "IIJA / Bipartisan Infrastructure Law — Airport Infrastructure Grant Funding Amounts" ($15 billion for airport infrastructure over five years). 2026. https://www.faa.gov/iija/iija-airport-infrastructure-grant-funding-amounts
21. Federal Aviation Administration. "Part 139 Airport Certification" (14 CFR Part 139). 2026. https://www.faa.gov/airports/airport_safety/part139_cert
22. Federal Aviation Administration. "Grant Assurances (Obligations)" — Assurance 24 (self-sustaining rates) and Assurance 25 (revenue use / anti-diversion). 2025. https://www.faa.gov/airports/aip/grant_assurances/assurances-airport-sponsors-2025
23. Airports Council International–North America. "Airport Infrastructure Needs Study / Capital Development Survey" (~$28B FY2025 capital spending; ~$173.9B five-year needs; enplanement projections ~1B in 2025, ~1.4B by 2040, ~1.7B by 2050). 2025. https://airportscouncil.org/intelligence/airport-infrastructure-needs-study/
24. Airports Council International–North America. "North American Airport Traffic Report" (2025 passenger traffic −0.7% vs 2024; domestic −1.0%, international +0.3%). 2026. https://airportscouncil.org/intelligence/north-american-airport-traffic-reports/
25. Federal Aviation Administration. "Calendar Year 2024 Passenger Boarding (Enplanement) and All-Cargo Data." 2025. https://www.faa.gov/airports/planning_capacity/passenger_allcargo_stats/passenger/arp-cy2024-commercial-service-enplanements.pdf