Industry Code 9531 for Repair and maintenance of automobiles and other motor vehicles, updated according to Decision 36/2025/QD-TTg. To learn more about the details of industry code 9531, please refer to this article by VN Law Firm!
1. What is a business industry code?
A business industry code is a sequence of numbers coded to represent a specific business line. Organizations and individuals, when preparing business registration documents, must use this business industry code table for registration. A 4-digit (level 4) industry code is used for business registration.
The Vietnam Standard Industrial Classification (VSIC) system, issued under Decision 36/2025/QD-TTg, has a hierarchical structure consisting of 5 levels, from general to detailed:
| Level | Name | Coding | Number |
|---|---|---|---|
| Level 1 | Level 1 Economic Sector | 1 letter (from A to V) | 22 sectors |
| Level 2 | Level 2 Economic Sector | 2 digits (based on Level 1) | 87 sectors |
| Level 3 | Level 3 Economic Sector | 3 digits (based on Level 2) | 259 sectors |
| Level 4 | Level 4 Economic Sector | 4 digits (based on Level 3) | 495 sectors |
| Level 5 | Level 5 Economic Sector | 5 digits (based on Level 4) | 743 sectors |
Example of industry code structure: Taking the food manufacturing industry as an example:
- Level 1: C (Processing and manufacturing industry)
- Level 2: 10 (Food processing and production)
- Level 3: 107 (Manufacture of other food products)
- Level 4: 1075 (Manufacture of prepared meals and dishes)
- Level 5: 10751 (Manufacture of prepared meals and dishes from meat)
2. Regulations on Industry Code 9531 for Repair and maintenance of automobiles and other motor vehicles
| Industry Code | Industry Name |
|---|---|
| 9531 | Repair and maintenance of automobiles and other motor vehicles |
This group includes:
– Repair and maintenance of automobiles, including trailers and semi-trailers:
+ Repair of mechanical parts, electrical parts, automatic ignition system,
+ Routine maintenance,
+ Bodywork repair,
+ Repair of automotive parts,
+ Car wash, polishing, spraying, and painting,
+ Repair of windshields and windows,
+ Repair of seats, upholstery, and car interiors,
+ Diagnosis and repair services for mechatronic systems,
+ Repair, patching of inner tubes, tires, installation or replacement.
+ Rustproofing.
+ Installation and replacement of spare parts and accessories not part of the manufacturing process.
– Repair and maintenance of other motor vehicles:
+ Repair of mechanical parts, electrical parts, and other parts of other motor vehicles,
+ Routine maintenance,
+ Bodywork repair,
+ Car wash, polishing, spraying, and painting,
+ Repair, patching of inner tubes, tires, installation or replacement,
+ Rustproofing,
+ Installation and replacement of spare parts and accessories not part of the manufacturing process,
+ Repair and maintenance of non-military amphibious vehicles.
This group also includes: Repair and maintenance of camping vehicles, motorhomes, etc.
Excludes:
– Retreading and recycling of tires for automobiles and other motor vehicles are classified under group 22110 (Manufacture of rubber tires and inner tubes; retreading and recycling of rubber tires);
– Services for fitting out camping vehicles, motorhomes are classified under group 29200 (Manufacture of bodies for motor vehicles, trailers and semi-trailers);
– Repair of forklifts and agricultural tractors are classified under group 33120 (Repair and maintenance of machinery and equipment);
– Periodic safety inspection of motor vehicles is classified under group 71200 (Technical testing and analysis).

3. Suggested way to record Industry Code 9531 for Repair and maintenance of automobiles and other motor vehicles
– When registering a business, when notifying changes or additions to business lines, or when requesting a change to a Business Registration Certificate, the business founder or enterprise selects a level 4 economic sector from the Vietnam Standard Industrial Classification system to record their business lines in the business registration application. The business registration authority provides guidance, cross-references, and records the enterprise’s business lines in the National Business Registration Database.
– For conditional business lines stipulated in other legal documents, the business line must be recorded according to the regulations in those legal documents.
Suggested way to record Industry Code 9531 for Repair and maintenance of automobiles and other motor vehicles:
Case 1: General
| Industry Code | Industry Name |
|---|---|
| 9531 | Repair and maintenance of automobiles and other motor vehicles |
Case 2: Detailed
| Industry Code | Industry Name |
|---|---|
| 9531 | Repair and maintenance of automobiles and other motor vehicles Details: Repair and maintenance of automobiles, including trailers and semi-trailers |
Case 3: Detailed
| Industry Code | Industry Name |
|---|---|
| 9531 | Repair and maintenance of automobiles and other motor vehicles Details: Repair and maintenance of camping vehicles, motorhomes, etc. |
Note: Depending on the specific industry and business line, as well as specific regulations in each locality, it may be necessary to provide detailed descriptions for level 4 industry codes or commit to operating in accordance with regulations.
4. Business line change service for companies and enterprises at VN Law Firm
The business line change service for companies and enterprises at VN Law Firm helps clients significantly reduce time and effort. With VN Law Firm, you will be provided with business line change services for companies and enterprises, including:
- Consultancy on the process and procedures for changing or adding business lines;
- Advise clients on preparing necessary documents;
- Draft and submit applications on behalf of clients for changing or adding business lines of the company/enterprise at the Business Registration Office;
- Monitor the application, supplement or amend it (if necessary) as required by the specialist;
- Carry out procedures to publish business registration information on the Portal;
- Hand over the confirmation of business line change;
- Guide clients on procedures to note after changing business lines…
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