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PESO Certification in India: Complete Guide for Manufacturers
The PESO (Petroleum and Explosives Safety Organisation) certification is a mandatory legal compliance and product registration required for manufacturers exporting oil, gas, and explosion-protected equipment to India.
Governed by the Explosives Act of 1884, the Petroleum Act of 1934, and subsequent rules (including the Explosives Rules of 2008 and Petroleum Rules of 2002), PESO ensures that equipment operating in hazardous, corrosive, or high-pressure environments meets strict safety standards.
PESO Certification at a Glance: Key Facts & Timelines
| Feature | Requirement / Specification |
| Mandatory? | Yes, for regulated oil, gas, pressure, and explosion-protected equipment in India |
| Certificate Validity | 4 to 5 years (typically expiring on December 31st of the final year) |
| Certification Duration | Approximately 3 to 4 months from official application submission |
| Product Testing | Generally not required if valid ATEX, IECEx, ASME, PED, or TPED test reports are submitted |
| Factory Audit (Inspection) | Required primarily for pressure equipment and valves; case-by-case for electrical items |
| Local Representation | Mandatory Authorized Indian Representative (AIR) contracted for at least 5 years |
What products require PESO certification?
PESO certification primarily targets equipment used in the oil and gas sector, facilities handling flammable gases or liquids, and installations subject to extremely corrosive environments (such as offshore or high-temperature plants).
Core Product Categories:
- Explosion-Protected (Ex) Electrical Equipment: As a general rule, any electrical device requiring IECEx or ATEX certification also requires a PESO certification.
- Pressure Equipment & Vessels: Products requiring ASME, PED, or TPED certifications.
- Hydrogen & Alternative Energy Equipment: Electrolyzers, hydrogen storage tanks, and fuel cells operating under high pressure or hazardous conditions.
- Corrosive-Environment Equipment: Electrical and mechanical devices exposed to salt water, extreme heat, or hazardous chemical processing.
In addition, approval may also be required for products for which ASME/PED/TPED certification is mandatory.
You can find a detailed overview of the relevant products in our list of PESO relevant products on our website. In addition to the products mentioned, electrical equipment that must withstand corrosive salt water or very hot temperatures, for example, also falls under the mandatory PESO certification requirement. Approval may also be required for products in the field of hydrogen, such as electrolyzers, hydrogen containers or fuel cells.
Step-by-Step: How does the PESO certification process work?
Pre-check of Technical Documentation (max. 2 years old)
Commercial & Data Compilation (sales numbers, client lists, client reviews)
Application & Document Review
Factory Inspection (if applicable)
Certificate Issuance
- Pre-check of Technical Documentation: Ensure current ATEX, IECEx, ASME, PED, or TPED certificates and test reports are available (ideally up-to-date and not older than 2 years).
- Commercial & Data Compilation: Gather manufacturer details, factory information, sales figures, and designate the Authorized Indian Representative (AIR).
- Application & Document Review: Official submission through the AIR. For Ex-electrical products, PESO certification is typically an administrative document-review process covering 30–50 specific files.
- Factory Inspection (if applicable): Required mainly for mechanical pressure devices and safety valves.
- Certificate Issuance: Final approval and release of the PESO product certificate.
In most cases, current existing ATEX, IECEx, ASME, PED, or TPED certificates and their test reports are recognised by the authority. Ideally, the relevant documents should be up to date with the latest standards and preferably not older than 2 years. For ex-electrical products the PESO certification is usually limited to an administrative process of document review and approval. The scope of the required documents is typically large but can vary from project to project (approx. 30-50 documents). The authority also requests information on the manufacturer, its Authorized Indian Representative (AIR), the product, the product components, the plant and commercial information in addition to the documents required for the application itself. Test reports and documents must be up to date with the latest standards and preferably not older than two years.
In more complex cases, a factory inspection is also required. This is common especially for pressure equipment incl. safety valves. In addition, the authority can also request product tests in India in specific cases, e.g. if no test reports are available or the submitted documents are outdated.
Please note that as with most other Indian certifications, a local Authorised Indian Representative (AIR) is required to be the applicant. For PESO the AIR must be technically qualified and trained for your product and must have a contractual obligation for a minimum of 5 years with the manufacturer. The AIR can be provided through several channels, e.g. through its own subsidiary or sales office in India, as well as through local importers or distributors.
What documents are required for a PESO application?
Preparing a comprehensive documentation package is critical for avoiding delays. The authority typically requires:
- Official PESO Application Form
- Valid IECEx or ATEX certificates and corresponding test reports
- ASME / PED / TPED certificates and reports (if applicable)
- Detailed technical drawings and product lists
- Name, address, and formal credentials of the Authorized Indian Representative (AIR)
- Commercial register extract or official company license
- Company organization chart including designated quality managers and AIR contacts
- Product brochures and technical data sheets for all sub-components
- 3-year historical sales data for the affected products (global and India-specific, plus projections)
- Customer references and performance feedback
What are the requirements for the Authorized Indian Representative (AIR)?
Every foreign manufacturer seeking PESO registration must appoint an Authorized Indian Representative (AIR) to act as the official liaison with Indian authorities.
- Qualifications: The AIR must be technically qualified and adequately trained regarding the specific products being registered.
- Contractual Term: The representation agreement must cover a minimum duration of 5 years.
- Eligible Entities: An AIR can be an independent local distributor/importer or the manufacturer’s own Indian subsidiary or branch office.
How does the PESO change management process work?
Once certified, manufacturers must maintain strict compliance. Any significant modification to a registered product requires notification to the authorities, who determine whether an official amendment or re-evaluation is necessary. Triggering changes include:
- Modifications to product design, structure, or core components (e.g., changing a tank’s closure flap)
- Changes in raw materials used
- Updates or revisions to underlying ATEX, IECEx, or test reports
The regulations explicitly state that the authority decides in each individual case whether an official application for a change must be submitted and, if so, what the consequences are for the PESO certificate holder as a result of the change.
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Clarification of the PESO certification requirement for your products
Application preparation and handling communication with the authorities
Provision of the Authorized Indian Representative (AIR)
Preparation and support of the audit (if required by PESO)
Organization of the renewal of your PESO certification
Information on product-specific regulatory changes
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PESO CertifiCation FAQ
If your product requires IECEx, ATEX, ASME, PED, or TPED certification for hazardous or pressurized environments, it will almost certainly require PESO registration before entering the Indian market.
On our website, you can find a list of products relevant to PESO certification.
The standard certification timeline is approximately 3 to 4 months following the formal submission of complete documentation.
PESO certificates are valid for 4 to 5 years. Validity is structured to expire on December 31st of the final year (e.g., a certificate issued on January 1st runs for nearly 5 years, whereas one issued mid-year runs for about 4.5 years).
Factory audits are primarily mandatory for mechanical pressure equipment, vessels, and safety valves. For pure electrical Ex-components, audits are generally waived unless specifically requested by the authority due to custom configurations.
First, you should ensure that valid IECEx, ATEX, ASME, PED, and/or TPED certificates, together with the corresponding test reports, are available for all relevant parts and components.
In addition, a purchase order from an Indian end customer must be available, clearly showing that the products to be certified will be installed at the customer’s site in India.
We provide comprehensive support in preparing all relevant application documents required for the PESO registration process.
The AIR must be provided by a local Indian company. The company can be the manufacturers subsidiary, a local sales office, as well as a local importer or distribution partner.
Factory inspections are primarily required for purely mechanical products, such as valves or pressure vessels. However, the authority may also require an audit for electrical components.
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