Key Facts
522399 at a Glance
Code 522399
Official title Other service activities incidental to air transportation n.e.c.
Version NIC 2025
Source authority MoSPI
Section H - Transportation and storage
Lg
NIC 2025 MoSPI source NIC 522399 - Other service activities incidental to air transportation n.e.c.
NIC 522399 classifies other service activities incidental to air transportation n.e.c. as a final six-digit transport or logistics activity under Section H and Division 52. Use it when this activity is the main source...
Source Verification for 522399
10 / 10
4 of 4 factors passing
- Verified in official source - Found in NIC_2025.xlsx official MoSPI release dataset.
- International crosswalk available - No official ISIC/NACE/CPC/ISCO correspondence table is bundled in this build input set.
- Migration from previous edition - Legacy migration candidates present from NIC 2008: 1.
- Complete hierarchy chain - All parent levels exist: Section > Division > Group > Class > Sub-class (5 levels).
- Official size/threshold documented - No official code-level size or threshold dataset is included in this source bundle.
- Trade or export crosswalk match - No official NIC-to-HS/export correspondence table is bundled in this source bundle.
- Legacy national crosswalk - Legacy link exists via NIC 2008 converter layer (1 linked legacy codes).
NIC 2008 -> NIC 2025 Mapping for 522399
NIC 2008 links are discovery matches from the local converter layer. Verify final migration decisions against official source documents.
Practical Summary
What Other service activities incidental to air transportation n.e.c. Means Under NIC 2025
NIC 522399 is the final six-digit endpoint for Other service activities incidental to air transportation n.e.c.. It should be selected only when the enterprise's primary transport or logistics activity matches this title more closely than 522301 Operation of terminal facilities at airports, 522302 Airport and air-traffic-control activities, 522303 Ground services provided at airports, such as aircraft refueling, towing, parking, and boarding assistance of passengers, animals or freight.
How To Choose
When to Choose 522399 Over Nearby Codes
Choose 522399 only when operations, invoices and revenue narrative align with Other service activities incidental to air transportation n.e.c.. If the activity also includes 522301 Operation of terminal facilities at airports, 522302 Airport and air-traffic-control activities, 522303 Ground services provided at airports, such as aircraft refueling, towing, parking, and boarding assistance of passengers, animals or freight, compare those pages before filing.
In this section
522301
Operation of terminal facilities at airports
522302 Airport and air-traffic-control activities
522303 Ground services provided at airports, such as aircraft refueling, towing, parking, and boarding assistance of passengers, animals or freight
522304 Maintenance work on airfield infrastructure such as runways, taxiways, and airport buildings.
522305 Storage of aircraft in hangars or designated parking areas.
522306 Firefighting and fire prevention services at airport
522307 Maintenance work on Spacecraft Launch Pad and associated infrastructure
522399
Other service activities incidental to air transportation n.e.c.
Common Questions About NIC 522399
Does NIC 522399 cover transport itself or logistics support?
Transport codes apply when the business carries passengers or freight. Warehousing, freight forwarding, cargo handling and support activities may sit under different logistics support codes.
What if the business stores goods and also moves them?
Choose the code matching the dominant paid service. A transporter, warehouse operator and freight forwarder can belong to different Sub-classes even when they serve the same supply chain.
How do I verify that NIC 522399 is correct before filing?
Check the parent hierarchy, compare 522301 Operation of terminal facilities at airports, 522302 Airport and air-traffic-control activities, 522303 Ground services provided at airports, such as aircraft refueling, towing, parking, and boarding assistance of passengers, animals or freight, and confirm that the official title matches the main revenue activity. For regulated or filing-critical decisions, verify the source row in the MoSPI dataset.
What happens if I use the wrong NIC code in Udyam or MCA registration?
A wrong code can cause mismatched business descriptions, follow-up questions or later compliance cleanup. It is better to compare nearby codes before filing than to correct a weak classification later.
Is there a legacy NIC 2008 equivalent for NIC 522399?
Use the legacy converter only as a migration aid. Old NIC 2008 matches can suggest where to look, but NIC 2025 should remain the primary reference for new code selection.
NIC 2026 guidance
Before you select NIC 522399
NIC 522399 should be selected only when the official title matches the main revenue-generating activity. If the business also trades, transports, processes, installs or supports the same product or service, compare nearby NIC pages before filing. This reduces the risk of choosing a code that describes the product being handled rather than the activity your enterprise actually performs.
Data Source and Verification Date
Source layer
Official NIC 2025 Excel and PDF from MoSPI.
Last verified
2026-04-21 from the generated NIC 2025 source layer used in this build.
Disclaimer
This is an independent reference tool. Verify filing-critical decisions in official sources.