ISI Mark certification
ISI Mark Certification is a BIS quality assurance mark confirming that a product conforms to the relevant Indian Standard (IS)....
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Key takeaways
- ISI refers to the Indian Standards Institution, now overseen by the BIS (Bureau of Indian Standards).
- The ISI marked symbol on a product means it conforms to the relevant Indian Standard (IS).
- The certification institutionally guarantees quality, safety and compliance as per BIS.
- Some goods must be ISI certified before they are released for sale, including cables, switches, cement and gas cylinders.
- There are over 700 products under the mandatory ISI certification list, covered under Scheme I of BIS.
- The system includes product testing at a recognised lab, a factory audit or inspection, and continual surveillance after the product is certified.
What is ISI Mark Certification?
The ISI Mark Certification is a commitment from the Bureau of Indian Standards (BIS) that a product meets certain Indian Standards (IS Codes). The ISI mark acts as an assurance of quality and safety, especially for products affecting public welfare under mandatory regulations, such as electrical appliances, cement, LPG cylinders and auto components.
ISI stands for Indian Standards Institute, the original name of the Bureau of Indian Standards. Although renamed in 1987, ISI Certification remains the popular name of the certification. For manufacturers, obtaining the mark is not just about regulatory compliance, it also builds consumer trust, enhances brand credibility and ensures hassle-free market access across India.
Why ISI Mark is important in India
- Legal authorization: products in mandatory categories must be ISI marked.
- Consumer trust: retailers and buyers look for the ISI logo as a trust badge.
- Market acceptance: government contracts, tenders and retail chains often require it.
- Global trade readiness: for exports, ISI certified products ease cross-border inspections.
Which products require the ISI mark
There are over 700 products under the mandatory ISI certification list. Each category is tied to one or more specific Indian Standards (IS codes).
| Product category | IS standard |
|---|---|
| Cement and building material | IS 269, IS 303 |
| Household electrical goods (switches, cables, fans) | IS 694, IS 302 series |
| Dry batteries | IS 8144 |
| Packaged drinking water, cattle feed, edible oils | IS 14543, IS 2051 |
| Plastic and glass feeding bottles | IS 14625, IS 5168 |
| Helmets, tyres, wheel rims, reflectors | IS 4151, IS 15633 |
| LPG cylinders, valves, regulators | IS 3196, IS 8737, IS 8776 |
| Product category | IS standard |
|---|---|
| Steel bars, rods, pipes | IS 1786, IS 2062 |
| Clinical thermometer, X-ray equipment | IS 3055, IS 7620 (Part 1) |
| Domestic gas stoves for LPG | IS 4246: 2002 |
| Domestic pressure cooker | IS 2347: 2017 |
| Cables | IS 1554 (Part 1), IS 7098 (Part 1) |
| Footwear, safety and sports shoes | IS 15298 |
| Portable fire extinguishers | IS 15683: 2018 |
Advantages of ISI certification
Enhanced reputation
An ISI marked brand signals quality and reliability, strengthening trust with buyers and partners.
Market access and expansion
Sell through B2B, B2C and e-commerce channels, and qualify for retail chains that require the mark.
Competitive advantage
Stand out from uncertified manufacturers and qualify for government and PSU tenders.
Improved efficiency
A structured quality control system raises production efficiency and reduces rejection rates.
Legal protection
Stay compliant and avoid legal penalties or product bans on notified goods.
Value for money
Higher buyer trust and fewer rejections deliver lasting value on the cost of certification.
Why the ISI mark is mandatory
If you plan to manufacture or sell products in India, certain items need mandatory ISI Certification under Scheme I of BIS. These include cement, steel, appliances, electronics, automotive parts, medical devices, packaged water, chemicals and fertilizers. Manufacturers of products listed under the mandatory BIS Scheme I must obtain ISI Mark Certification to legally sell or distribute their products in India.
Basic requirements to certify
- IS compliance: the product must meet the relevant Indian Standard, identified by the correct IS number.
- Testing facilities: access to in-house or accredited third-party laboratories.
- Quality control: a credible quality control system covering inputs from raw material to final inspection.
- BIS inspection: verification of the quality control system and production processes at the facility.
- Fees and charges: application fees, test charges, inspection fees and annual license fees apply.
- Selling notified products without the ISI mark is illegal and punishable under the BIS Act.
The certification process, step by step
The path is similar for Indian manufacturers under the normal and simplified procedures. The core stages are the same.
Core procedure
Application submission
Submit the completed application with product details, manufacturing processes, quality control measures and test reports.
Verifying documents
BIS reviews the submitted documents to ensure compliance with regulatory standards.
Product testing
Selected product samples are sealed and sent to BIS-recognised laboratories for testing against the relevant IS.
Factory visit and inspection
BIS officials inspect the facility to confirm the quality control system and production processes meet the required standards.
Grant of ISI Mark
On successful testing and inspection, the certification is granted and you may display the ISI mark on your products.
Timelines by route
Normal producer
After preparation, inspection and lab testing, the certificate for Indian manufacturers is typically issued within 60 to 65 days from the application date.
Simplified producer
Where previously tested samples certified to IS specifications are submitted, BIS approves and issues the certificate within 35 to 40 days.
Foreign manufacturers
Foreign makers can certify under the Foreign Manufacturers Certification Scheme (FMCS) of BIS, with additional import-related documentation.
Documents required
- Application Form V, filled and signed
- Proof of application fee payment
- Test reports, in-house or third-party, as per the relevant IS standard
- Business registration (Udyam/MSME, GST or incorporation certificate)
- Factory address proof (utility bill, factory license)
- Manufacturing process flow chart
- List of machinery and test equipment with calibration details
- Product specifications and drawings, factory layout plan and raw material details
- Quality control staff details and trademark certificate, if applicable
Validity & renewal
- ISI Mark Certification is generally valid for 1 to 2 years.
- It must be renewed before expiry, with ongoing surveillance of certified products.
- Annual license fees apply for the duration of the license.
- The mark may be withdrawn for non-compliance with the applicable IS.
Related approvals? See our BIS Certification, FMCS Mark Certification and CRS Mark Certification services.
Cost factors
The total cost varies based on the product and the manufacturing setup. The typical components are:
| Cost factor | Details |
|---|---|
| BIS application fee | Charged on submission of the application for license approval |
| Testing fees | Lab testing of sealed samples against the relevant IS |
| Inspection charges | Cost of the on-site factory audit |
| Annual license fee | Payable to retain the license and ISI mark |
Not sure which IS standard applies?
Tell us your product, and we will map the exact IS code, documents, testing route and timeline, and act as your Authorized Indian Representative (AIR) if you are a foreign manufacturer.
Frequently asked questions
What is the ISI Mark Certification?
ISI Mark Certification is a quality standard issued by the Bureau of Indian Standards (BIS) that ensures a product conforms to Indian safety and quality standards. It is mandatory for various products like electronics, steel, cement, toys and more.
Which products require the ISI mark?
Notified items include cement, electrical appliances such as switches, cables and fans, steel products, packaged drinking water, automotive components, textiles, and LPG cylinders and regulators. A comprehensive list is available on the BIS website at www.bis.gov.in.
Can foreign manufacturers obtain the ISI mark?
Yes. Foreign manufacturers can certify under the Foreign Manufacturers Certification Scheme (FMCS) of BIS. The process is similar to that for domestic manufacturers, with additional requirements related to import regulations and documentation.
How long does certification take?
The process usually takes 2 to 3 months for an Indian manufacturer and 4 to 6 months for a foreign manufacturer, depending on the product type and document readiness.
How long is the certification valid?
ISI Mark Certification is generally valid for 1 to 2 years, after which it must be renewed, with continual surveillance of certified products in the interim.
What does it cost?
The cost includes BIS application fees, inspection charges, testing fees and consultant fees. The total varies based on the product and the manufacturing setup.
Why choose Diligence Certification?
For compliance and credibility, Diligence is much more than a checklist - we give you real confidence in your business. We examine your legal, financial and operational status, so you are not just certified, but trusted.
Stronger risk protection
Spot hidden legal, financial or operational risks early - fix problems before they become threats.
Earn stakeholder trust
From investors to customers, people want to work with businesses that play by the rules.
Stay legally aligned
Compliant not just on products but on labour, environmental and tax laws too.
Enhance brand reputation
Show the world you operate with integrity and transparency.
Stand out from competitors
In a crowded market, credibility is your biggest edge.
24×7 expert support
A 100+ strong service team guiding you at every step, free first consultation.
Real sites, real certifications
Our teams work inside factories and plants across India and abroad - inspections, audits and certification milestones spanning BIS, global schemes and the full compliance stack you see on this site.
What our clients say
Reviews and feedback from businesses that have worked with Diligence Certifications.










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