Mandatory BIS Certification
All Diesel Generators & Their Assemblies or Components
Diesel Generator BIS Compliance Roadmap 2024
Start Early: BIS & NABL Compliance for DG Sets
Start BIS process for diesel gensets (HS 8502/8503) early—complete testing, inspection, and ISI marking before 1 Sept 2026.
ERA – Your Certification Partner
ERA’s in-house experts offer complete support for documentation, IS/ISO 8528 mapping, and BIS filing under Scheme X.
📧 cs@eraglobal.co.in | 📱 +91 9599296331 (Call/WhatsApp)
Expertise in Machinery QCO
ERA certifies diesel gensets and components under the 2024 OTR.
Assess Your Product
Match DG type to IS/ISO 8528 part—use ERA’s checklist for gaps.
| Sr. No. | Parameter | Details / Action Required | Compliance Status |
|---|---|---|---|
| 1. | Governing Regulation | Machinery & Electrical Equipment Safety (Omnibus Technical Regulation) Order, 2024 | Mandatory |
| 2. | Effective Date | 1 September 2026 – BIS certification becomes enforceable | Countdown running |
| 3. | Applicable Law | Sections 16, 17, 25 of BIS Act, 2016 | Binding Statute |
| 4. | Certification Scheme | Scheme X – Factory inspection + ISI marking | Compulsory |
| 5. | Marking Requirement | ISI Mark on generator sets + Rating plate + QR traceability | Mandatory |
| 6. | Product Scope | All diesel generator types (open, silent, mobile) | Fully Covered |
| 7. | Component Coverage | Engines, alternators, control gear, fuel/exhaust assemblies | Fully Applicable |
| 8. | Applicable Standards | IS/ISO 8528 (Parts 2, 3, 4, 5, 8, 12) | Clause-specific |
| 9. | Key Industries Affected | Construction, Hospitals, Data Centers, OEMs, Commercial Real Estate | High Risk if Delayed |
| 10. | Cross-Regulatory Impact | Also required under CPCB-II emission norms, CEIG approvals | Dual Compliance |
| 11. | Exemptions | Export-only goods and government security agencies | Conditional |
| 12. | Enforcement Agency | Bureau of Indian Standards (BIS) | Notified Authority |
| 13. | Penalties for Violation | Fines, seizure, cancellation of license, prosecution | Severe |
| 14. | Steps to Comply (Next Actions) | 1. Identify IS standard 2. Prepare Tech File 3. Register with BIS 4. Submit product for testing 5. Schedule audit 6. Apply ISI Mark | Begin now |
| 15. | HS Detail | 8502- Electric generating sets and rotary converters - generating sets with compression-ignition internal combustion piston engines (diesel or semi-diesel engines): of an output not exceeding 75 kva 8503 - Parts suitable for use solely or principally with the machines of heading 8501 or 8502 - parts suitable for use solely or principally with the machines of heading 8501 or 8502:parts of generator (ac or dc) | Verified |
Ready to start your certification journey?
Let us help you navigate regulatory challenges and achieve certification with ease. Leave us your details, and we’ll get back to you—or request a free consultation today.
Get in touch with us today
Product Scope Description:
This category includes diesel-powered generating sets and all their mechanical and electrical sub-systems used to convert diesel fuel energy into alternating current (AC) power.
HS Codes Covered:
- 8502- Electric generating sets and rotary converters – generating sets with compression-ignition internal combustion piston engines (diesel or semi-diesel engines): of an output not exceeding 75 kva
- 8503 – Parts suitable for use solely or principally with the machines of heading 8501 or 8502 – parts suitable for use solely or principally with the machines of heading 8501 or 8502:parts of generator (ac or dc)
Applicable Standard(s):
The Diesel Generator Sets and their components must conform to the clauses from the IS/ISO 8528 series of standards:
- IS/ISO 8528 (Part 2): 2018 – Engines
- Clauses: 5, 6, 7, 8, 9, 10
- IS/ISO 8528 (Part 3) – Alternating current generators for generating sets
- Clauses: 6, 10
- IS/ISO 8528 (Part 4): 2005 – Control gear and switchgear
- Clauses: 4, 5.5, 7.3.5, 7.3.7, 7.4
- IS/ISO 8528-5: 2018 – Generating Sets
- Clauses: 12, 13, 14, 15
- IS/ISO 8528 (Part 8): 2016 – Genset applications
- Clause: 6.4
- IS/ISO 8528 (Part 12): 1997 – Emergency power supply to safety services
- Clause: 9.1
Comply with the Machinery and Electrical Equipment Safety (Omnibus Technical Regulation) Order, 2024 – Legally Mandatory Under the BIS Act, 2016
Legal Compliance Overview
As per the Machinery and Electrical Equipment Safety (Omnibus Technical Regulation) Order, 2024, diesel generators and their assemblies under HS 8502 and 8503 are now subject to mandatory BIS certification.
This obligation is enforceable under Sections 16, 17, and 25 of the BIS Act, 2016.
Compliance deadline: 1 September 2026
Only ISI-marked and certified diesel generator sets may be sold or used in India post-deadline.
Product covers:
The scope applies to:
- Diesel Generators for domestic, industrial, commercial & institutional backup
- Silent DG Sets, open-frame, trailer-mounted and containerized types
- Generator engines, alternators, fuel systems, switchgear, cooling assemblies
- Subassemblies/components like control panels, exhaust, vibration isolators
This applies regardless of application — standby, continuous, or emergency power supply.
Example Machine Categories Covered
| Machine/Component Type | Example Use/Function |
|---|---|
| Portable Diesel Gensets | Temporary power at construction sites, event venues |
| Silent DG Sets | Urban installations, commercial complexes, hospitals |
| Industrial DG Units | Manufacturing, cold storage, large-scale commercial hubs |
| Engine-Alternator Pairs | Core power generating modules for Gensets |
| DG Control Panels | Switchgear & load transfer systems for generator operation |
Urgency to Comply
The widespread use of diesel generators across critical sectors like healthcare, telecom, banking, infrastructure, and construction makes non-compliance a high-liability risk.
After 1 September 2026, non-BIS certified generator sets will face:
- Market suspension
- Seizure of stock
- De-registration from public tender lists
- Customs and logistics blockades
Delays will disrupt both supply chain operations and business continuity.
Step-by-Step Action Plan
- Product Mapping
Identify the generator category (portable, silent, containerized, industrial) and assign the right IS/ISO 8528 Part.
- Documentation & Testing
Prepare a safety file, technical performance data, emissions certificate (if applicable), and submit for lab testing.
- Apply for BIS Certification
File under Scheme X with factory details, test results, BoM, etc., on ManakOnline
- Factory Audit
BIS officers will inspect the quality system and sample output from the manufacturing line.
- ISI Marking Integration
Marking must include ISI logo, License No., rated power, voltage/frequency, emissions, QR tracking.
Â
Industries & Stakeholders Required to Comply
- Diesel Generator Manufacturers
- EPC Contractors in Infrastructure Projects
- Electrical Consultants and Utility Boards
- Industrial Campus Energy Managers
- Government Procurement Departments (CPWD, NHAI, PSUs)
- OEM Suppliers and Importers
Consequences of Non-Compliance
- Confiscation of stock at port or warehouse
- Ineligibility for public infrastructure contracts
- Legal prosecution under BIS Act
- Supply chain disruptions and delayed commissioning
- Blacklisting from approved vendor lists (DGS&D, GeM)
Steps to Legalize Your Machinery
- Match product with HS code (8502/8503) and correct IS/ISO 8528 Part
- Conduct in-house or third-party testing of genset parameters
- Register factory and product with BIS portal
- Complete marking and labeling in prescribed BIS format
- Undergo factory assessment and clearance
- Begin sale/distribution with ISI mark visibly fixed
Conclusion: Why Action is Urgent?
Diesel generators are mission-critical equipment for power assurance — but now they are also subject to rigorous regulatory oversight under Indian law. BIS certification isn’t just a paperwork formality; it is the legal license to operate and sell your DG sets in the Indian market post 2026.
Don’t risk compliance delays — whether you manufacture, import, or install DG sets, securing your BIS license is the only route to legal, uninterrupted business.
Act now. Enforcement is certain and time-bound.
Ready to start your certification journey?
Let us help you navigate regulatory challenges and achieve certification with ease. Leave us your details, and we’ll get back to you—or request a free consultation today.