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NIC 2025 MoSPI source

NIC Class 3900 - Remediation and other waste management service activities

NIC Class 3900 covers Remediation and other waste management service activities. This is the main comparison layer for deciding which specific six-digit Sub-class best fits the real activity described in Udyam, MCA or...

Level Class
Depth 4/5
Children 7
Last verified 2026-04-21

Hierarchy tree

390001
Soil & Groundwater Remediation activities
 390002
Surface water and coastal cleaning servicies
 390003
Industrial & Nuclear Decontamination activities
 390004
Other specialized pollution-control activities excluding carbon capture and storage
 390005
CO2 remediation and Carbon Capture and Utilization (CCU) services including Blue carbon restoration and ocean-based carbon sequestration services
 390006
Mining site remidiation
 390099
Remediation and other waste management service activities n.e.c.
Practical Summary

What Class 3900 Covers

Class 3900 is the final decision layer before six-digit Sub-classes such as undefined undefined, undefined undefined, undefined undefined, undefined undefined and 3 more. Compare the child pages before using a code in a filing.

Where Used In Practice

Where Class 3900 Is Used

Class 3900 is used when the final six-digit code is not obvious and official notes or child Sub-classes need to be compared.

  • Udyam and MSME code research
  • Company or LLP registration preparation
  • Business activity shortlisting before filing
  • Internal classification and vendor profiling
How To Choose

How to Narrow Down From Class 3900

Review every child Sub-class under Class 3900. If the wording is still broad, open the six-digit child pages before using a code in registration.

Official note

Class note from the source layer

This class excludes: - pest control in agriculture, see 0161 - purification of water for water supply purposes, see 3600 - treatment of waste with recovery, see 3830 - storage of captured Carbon Dioxide (CO2), see 3821 - treatment of waste for disposal, see 382 - outdoor sweeping and watering of streets, see 8129 - Civil engineering projects of rehabilitation of mining sites, see section F

Common Questions About NIC 3900

Which businesses fall under NIC 3900?

Start here when the business belongs to remediation and other waste management service activities and then compare child entries such as undefined undefined, undefined undefined, undefined undefined, undefined undefined and 3 more.

Is NIC 3900 a final filing code?

No. This is a hierarchy page. Continue to the six-digit Sub-class before using a code in registration or compliance records.

How do I verify that NIC 3900 is correct before filing?

Check the parent hierarchy, compare nearby sibling codes in the same parent category, 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 3900?

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

How to move from Class 3900 to the right Sub-class

NIC 3900 is an intermediate hierarchy page, not usually the final code used in a filing. Use it to compare child entries, read the nearby-code context and move toward the most precise six-digit Sub-class. If the child list contains several similar activities, open each candidate page and compare the wording against the business's real operating model.

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.