BIS Certification for Compressors in India: A Complete Guide to Scheme X Compliance

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In India’s expanding industrial and manufacturing sectors, compressors play a critical role across a range of industries—automotive, HVAC, refrigeration, oil & gas, pharmaceuticals, and power generation. These machines, which compress and transport gases or air, are central to ensuring efficient, reliable, and safe operations.

Recognizing their importance, the Government of India, through the Bureau of Indian Standards (BIS), has introduced stringent safety and quality regulations. At the forefront of this initiative is the BIS Scheme X Certification, made mandatory under the Omnibus Technical Regulation Order (OTRO), 2024.

This article provides a comprehensive overview of the BIS certification for compressors, what it entails, and why manufacturers must comply by 28th August 2025.

Why is BIS Certification Necessary for Compressors?

A compressor is a mechanical device that increases gas pressure by reducing its volume. Common types include:

Reciprocating piston compressors
Rotary screw compressors
Scroll compressors
Centrifugal compressors
Axial compressors

Also Read: FOREIGN MANUFACTURER CERTIFICATION SERVICES

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These compressors are widely used in power plants, HVAC systems, pneumatic tools, and industrial manufacturing. Because they operate under high pressure and are critical to system reliability, any failure can result in serious safety risks such as equipment damage, fire, or hazardous leaks.

BIS certification ensures these products meet strict safety and performance standards, safeguarding both end users and operational integrity.

What is Scheme X Certification by BIS?

The Bureau of Indian Standards (BIS) is the national authority for product standardization in India. Launched on 16th March 2022, Scheme X Certification is a regulatory framework established under the BIS Conformity Assessment Regulations, 2018, specifically designed for machinery and electrical equipment.

Key Highlights of Scheme X:

Compulsory certification required for designated products, including compressors and their components.
Comprehensive testing and inspection by BIS-approved labs
Factory audits to ensure consistent manufacturing quality
Authorization to use the ISI Mark for certified products

Omnibus Technical Regulation Order (OTRO), 2024

The Ministry of Heavy Industries issued OTRO in 2024, making BIS Scheme X Certification compulsory for all compressors, their sub-assemblies, and components by 28th August 2025.

After this deadline, manufacturers—whether Indian or foreign—cannot sell or import uncertified compressors in the Indian market.

Also Read: Safety Regulations for Machinery and Electrical Equipment

Products Covered Under BIS Certification for Compressors

Scheme X certification covers a wide variety of compressors along with their associated components.

Types of Compressors

Reciprocating (single or multi-stage)
Rotary screw (oil-free and oil-injected)
Scroll (used in HVAC and refrigeration)
Centrifugal (used in industrial processes)
Axial (used in aviation and energy sectors)

Assemblies and Sub-Assemblies

Motor assemblies
Compressor cooling systems
Mounting and support structures
Piping, valves, and electrical controls

Components

Pistons and crankshafts
Bearings and valve systems
Casings, filters, and separators

Also Read: Quality Control Order for Scheme-X

Any part that impacts compressor safety, performance, or structure is subject to BIS compliance.

BIS Certification Process for Compressors

The certification process is structured and involves:

Identify Applicable Standards: Refer to the specific Indian Standards (IS) for your compressor type.
Product Testing: Get your product tested at BIS-accredited labs for safety, durability, and performance.
Factory Inspection: BIS officials audit your manufacturing facility for quality assurance.
Document Submission: Submit technical specifications, quality manuals, test reports, and application forms.
License Grant: If approved, you will receive authorization to use the Standard Mark (ISI).
Surveillance and Renewal: Regular audits and testing ensure ongoing compliance.

Why Manufacturers Must Act Now

The deadline of 28th August 2025 is fast approaching. The certification process can take time, especially for international brands entering the Indian market. Early action helps avoid last-minute delays and regulatory complications.

Consequences of Non-Compliance

Failure to comply with BIS Scheme X Certification can result in:

Prohibition on sales/import of uncertified compressors
Penalties under the BIS Act, 2016
Product seizures and recalls
Disqualification from tenders and loss of market trust

Benefits of Early BIS Compliance

Uninterrupted market access within India
Eligibility for government and public sector tenders
Increased consumer trust through ISI marking
Reduced risk of product failure and legal complications
Stronger brand positioning in a regulated market

Conclusion

The BIS Scheme X Certification for compressors—whether full units, assemblies, or components—is a major step toward improving safety, performance, and standardization in India’s industrial sector.

With the Omnibus Technical Regulation Order, 2024 making certification mandatory by 28th August 2025, manufacturers must begin the process now to ensure compliance, build trust, and unlock growth opportunities in one of the world’s fastest-growing markets.

For more information contact us at cs@absoluteveritas.com