- BIS certification according to IS 15391:2003 is required for semi-processed oriented Electrical Steel Sheet and strips in India.
- The standard imposes limits for magnetic loss, thickness, and surface quality to assure the product’s performance.
- It is a must for manufacturers to go through laboratory testing and BIS factory audits to get the green light.
- Those producers who are certified acquire a wider market access and the trust of the customers.
- To keep the licence, ongoing testing and documentation are necessary.
Introduction

Once a steel manufacturer from Pune was faced with the situation when their shipment of semi-processed electrical steel sheets was delayed because the consignment was stopped for lacking BIS certification. Even though the material met the technical specifications, lack of compliance led to the loss of a major client order. Such instances indicate how important certification has become in the Indian electrical steel market. BIS Certification for Oriented Electrical Steel Sheet and Strip – Semi-Processed Type – Specification based on IS 15391:2003 is a way of confirming that the products meet the quality and performance standards set by the country. Bureau of Indian Standards
What is IS 15391:2003?
IS 15391:2003 aims to be an Indian Standard describing the standard specifications for such sheet metals and strips of cold rolled semi-processed electrical steel which are utilized for the production of motors and transformers. This specification allows the material to be subjected to the standards of quality and performance set by high precision.
Key points:

- Covers thickness, surface finish, and magnetic loss requirements.
- Ensures consistent electrical performance and energy efficiency.
- Includes standard test methods and inspection guidelines.Mandatory for BIS certification and domestic market compliance. ISI MARK
Why is BIS Certification Mandatory
It is necessary that the Bureau of Indian Standards gives its certification to ensure that the electrical steel goods that are sold in India are those that meet the standards of safety, quality, and performance set by the country. In accordance with the Steel and Steel Products (Quality Control) Order, it is required that all manufacturers and importers of semi-processed electrical steel sheets and strips must get a BIS certification before they can sell or distribute their products.
Key points:
- Material used in products of IS 15391:2003 must maintain quality and magnetic performance requirements.
- One of the major benefits is that it ensures the consumers and industries using the steel products get protection against substandard or unsafe products which are prevalent in the markets at times.
- It contributes to the establishment of a good relationship of trust and understanding between manufacturers and OEM buyers.
- Stopping the entry of non-compliant or low-quality imports in the market.
- Requirement under the law—failure to comply may result in a penalty, confiscation of goods, or prohibition of production.
Importance & Benefits of BIS Certification
| Importance | Benefits |
| Steel and Steel Products (Quality Control) Order made it mandatory. | Enables manufacturing, importing, and selling to be done legally within India. |
| Ensures compliance with IS 15391:2003 quality standards | Guarantees consistent thickness, surface finish, and magnetic performance |
| End users and OEMs are protected against counterfeit materials. | Electrical equipment gets more reliable and energy-saving. |
| Provides manufacturers with enhanced brand image and accountability. | Helps companies to nurture trust relationships with clients and regulatory authorities over time. |
| Encourages better quality management and testing practices | Enhances production efficiency and reduces product rejection |
Step-by-Step Process of BIS Certification

Step1:Documentation
- Gather all the documents that are necessary such as company registration, manufacturing details, and product specifications.
- Develop a Quality Control Manual which describes the production and testing procedures.
- Besides that, present the factory layout, process flow, and the list of the manufacturing and testing equipment.
- Before submitting the documents make sure that all of them are accurate and updated in order to avoid waiting time.
Step2:Product Testing
- First, send product samples to a lab accredited by the BIS for the testing as per the standards laid down by the Indian Standard (e.g. IS 15391:2003).
- Ensure that the tests cover all parameters for example dimensions, surface finish, and magnetic properties.
- Maintain calibration certificates of all in-house testing equipment.
- Collect and verify test reports before attaching them to your application.
Step3:Application Submission
- Applications can be made online through the BIS portal with all necessary documents and test reports.
- Make the specification clear such as product type, grade, and the use, in the application form.
- Also, the applicant should pay the BIS application and inspection fees that are prescribed.
- Keep the application number that the office gives you, as a record, it can be used to track and communicate with BIS.
Step4:Scrutiny and Inspection
- BIS officers examine your papers and if necessary, they may ask for more explanations.
- The factory visit is a part of the procedure which is done to confirm the production environment and also the testing capabilities.
- Inspectors ascertain good traceability, control of raw materials, and quality checks.
- Respond to any issues raised or non-compliance immediately in order to get your approval.
Step5:Grant of License
- After a satisfactory audit and testing, BIS gives the licence along with the Standard Mark (ISI Mark) and licence number.
- This licence shows product details, grades, and standards to which the product conforms.
- You are allowed to put the BIS logo and the licence number on your products.
- Comply with the requirements on a continuous basis through regular testing and renewal inspections.
Documents required for BIS Certification
| Category | Documents Required |
| Company Details | Company registration, GST, PAN, and factory address proof |
| Manufacturing Info | Factory layout, process flow, machinery list, production details |
| Quality Management | Quality manual, QC staff list, test procedures, calibration records |
| Product Details | Product description, grade, drawings, marking and packaging info |
| Testing Reports | BIS-approved lab test report, in-house test records |
| Legal Documents | Authorization letter, declaration of conformity, signed application form |
Timelines, Costs, Validity & Renewal
- Timelines: The time frame for BIS certification generally will take 8–12 weeks, and includes testing & inspection.
- Costs: Fees include, based on the product scope, application fees, testing fees, inspection fees, and marking fees.
- Validity:Your license will be valid for two years from the date of issue.
- Renewal: You can renew the license by 1–2 years with subsequent reports submitted in a timely manner.
Why Choose Diligence Certifications
- In-depth knowledge of BIS certification for electrical steel as per IS 15391:2003.
- Full service on all aspects including documentation, testing and audit clearance.
- Work with BIS accredited labs to ensure accurate and timely testing.
- Evidence of faster approval timelines while ensuring compliance.
- Ongoing support for subsequent licence renewals, scope extensions, and quality assurance.
Conclusion
The BIS Certification under IS 15391:2003 indicates that semi-processed electrical steel sheets and strips meet the quality and performance standards of India. It is legally mandated in order for manufacturers to maintain any legality in manufacturing and selling semi-processed electrical steel sheets and strips in India. The Certification guarantees reliable and consistent performance and standards according to regulatory assurance, and helps to establish trust for buyers and OEMs (Original Equipment Manufacturers). The Certification increases credibility in the market while decreasing chances of being rejected, which can aid manufacturers in growing their business in the long-term as well.
Frequently Ask Questions
What is IS 15391:2003?
IS 15391:2003 illustrates the physical features of one side cold rolled, half processed electrical steel sheets and strips which are the common materials used in transformers and motors. The standard documents the product quality, test, and performance criteria.
Is BIS certification mandatory for semi-processed electrical steel in India?
Yes, it is mandatory under the Steel and Steel Products (Quality Control) Order. Manufacturers and importers must obtain BIS certification before selling or distributing their products in India.
Who issues the BIS certification in India?
The Bureau of Indian Standards (BIS) is the authorized government body responsible for granting the certification after testing and inspection.
What are the key parameters tested under IS 15391:2003?
The major parameters include thickness, surface finish, magnetic loss, and mechanical properties to ensure performance consistency and energy efficiency.
How long is BIS certification valid?
Generally, the whole certification stage together with preparations at the manufacturer's side, testing and BIS inspection takes from 8 up to 12 weeks.
What documents are needed for BIS certification?
Essential documents include company registration, factory layout, quality manual, product drawings, test reports, and an authorization letter.
How long is the BIS license valid?
A BIS license can be used for two years from the day when it was issued and is contingent on regular quality checks and standard maintenance.
Can foreign manufacturers apply for BIS certification?
Yes, foreign manufacturers can apply under the Foreign Manufacturers Certification Scheme (FMCS) of BIS, provided they have an authorized Indian representative.
What happens if a manufacturer sells without BIS certification?
Selling or distributing uncertified electrical steel in India can lead to penalties, product confiscation, or suspension of manufacturing rights under the Quality Control Order.
Why choose Diligence Certifications for BIS approval?
Diligence Certifications is your manager to handle the entire BIS certification cycle starting from documentation preparation, product testing, audit coordination, license renewal services till the end when clients get their BIS in a quick, standard-compliant, and trouble-free manner.
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