The complete guide to ISI Mark certification
For domestic manufacturers of mandatory products like steel, cement, helmets, and appliances.
- Timeline
- 3-8 monthsDatabase: 6–26 weeks full, 12–24 weeks middle half
- Cost
- ₹80K-6LDatabase: ₹31K – ₹3.8L full, ₹48K – ₹2.7L middle half
- Factory Inspection
- Yes, Mandatory
ISI Cost and Timeline Data
These are measured across the 772 ISI products in our database, so they line up with what the checker shows for a specific product. The figures in the tiles above are the guide figures: start to finish for a first-time applicant, including application and processing fees that the database does not record.
| Measure | Full range in our database | Middle half of products |
|---|---|---|
| Total cost, per product | ₹31K – ₹3.8L | ₹48K – ₹2.7L |
| Time from application to registration | 6–26 weeks | 12–24 weeks |
The middle half is the 25th to 75th percentile band. The full range is stretched by a handful of unusually complex products.
Other Certification Routes
ISI Mark is for products manufactured in India. If yours is imported, or made overseas for export into India, a different scheme applies.
- CRSCRS RegistrationRegistration for electronics and IT products, with no factory visit.
- FMCSFMCSCertification for overseas factories exporting into India.
ISI Certification Process | Step by Step
Check Applicability
Use the bischeck.in checker to confirm your product requires ISI certification. Identify the applicable Indian Standard (IS number), which determines the testing requirements and factory standards you must meet.
Prepare Factory Infrastructure
Set up an in-house testing lab, quality control processes, and documentation systems. BIS inspectors verify these during the factory visit. This step typically takes 1-3 months for first-time manufacturers.
Get Product Tested at BIS Lab
Send product samples to a BIS-recognized lab for testing against the applicable IS standard. Testing takes 4-8 weeks. Select a lab with experience in your product category for faster turnaround.
Apply on BIS Manakonline Portal
Submit application with test report, factory documents (MSME/IEM certificate, manufacturing process flow chart, machinery list), QC manual, raw material supplier list, and trademark registration.
BIS Factory Inspection
BIS officers visit your factory (1-3 days) to verify manufacturing capability, QC systems, raw material traceability, and product consistency. Budget ₹10K-₹50K for officer travel expenses.
Receive ISI License & Apply Mark
After successful inspection and document review, BIS grants the ISI license (valid 1 year, renewable). Affix the ISI Mark on your products. You can now legally sell in the Indian market.
Products Requiring ISI Mark
772 ISI products across diverse industries require mandatory ISI certification. Key categories include:
- TMT Steel Bars & Structural Steel
- Cement (OPC, PPC, PSC)
- Pressure Cookers
- Helmets (2-wheeler)
- Electric Ceiling Fans
- Gas Stoves (LPG)
- Water Heaters (Instant)
- PVC Cables & Wiring
- Switches (Domestic)
- Kitchen Appliances
- Safety Glass
- Toys (Non-electric)
- Footwear
- Automotive Tyres & Tubes
- Cylinders (LPG)
Documents Required for ISI Application
- Factory registration / MSME / IEM certificate
- Manufacturing process flow chart
- List of machinery and testing equipment
- Quality control manual & test procedures
- Raw material supplier list with test certs
- In-house testing lab calibration records
- Product technical specifications
- Company PAN, GST registration, address proof
- Authorization letter on letterhead
- Trademark registration (if applicable)
ISI Cost Breakdown
| Cost Item | Estimated Amount | Notes |
|---|---|---|
| Product Testing at BIS Lab | ₹15,000 - ₹3,00,000 | Varies by product complexity |
| BIS Application Fee | ₹1,000 | Flat across every product in the database |
| Factory Inspection Travel | ₹10,000 - ₹50,000 | BIS officer travel & accommodation |
| Annual Marking Fee | ₹5,000 - ₹1,00,000 | Volume-based, paid annually |
| Consultant Fee (optional) | ₹50,000 - ₹2,00,000 | Includes factory audit prep & documentation |
Maintaining Your ISI License
Annual Renewal
ISI licenses must be renewed annually. Submit renewal application 3 months before expiry. Late renewal incurs penalties and may require re-inspection.
Surveillance Audits
BIS conducts periodic surprise inspections to verify ongoing compliance. Ensure QC records, calibration logs, and production samples are always audit-ready.
Product Changes
Any change in product design, raw materials, or manufacturing process must be reported to BIS. Significant changes may require re-testing and re-approval.
Frequently Asked Questions
What is ISI Mark certification?+
ISI Mark is India's quality certification for manufactured products under BIS Scheme-I. It requires product testing AND factory inspection by BIS officers. 772 ISI products including steel, cement, pressure cookers, helmets, and electrical appliances require mandatory ISI certification.
Who needs ISI Mark certification?+
Indian manufacturers producing products covered under mandatory BIS QCOs. Unlike CRS which is for importers too, ISI is specifically for products manufactured in India across steel, cement, kitchen appliances, safety equipment, electrical goods, and more.
How much does ISI certification cost?+
Testing: ₹15K-₹3L. Application fee: ₹1,000. Factory inspection travel: ₹10K-₹50K. Annual marking fee: ₹5K-₹1L. Consultant: ₹50K-₹2L. Total: ₹80K-₹6L depending on product complexity.
How long does ISI certification take?+
Total timeline: 3-8 months. Lab testing: 4-8 weeks. Factory inspection scheduling: 2-4 weeks. BIS review and grant: 2-4 weeks after inspection. Plan for 6 months minimum.
Is factory inspection mandatory for ISI?+
Yes. BIS officers visit your factory to verify manufacturing capability, quality control systems, raw material traceability, and product consistency. This is the key difference from CRS. Inspection takes 1-3 days with officer travel costs borne by the applicant.
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