Setting up a compressed natural gas (CNG) station involves more than installing compressors, storage cascades and dispensers. The facility must meet applicable technical, safety and licensing requirements before it can legally dispense CNG as automotive fuel.

CNG Station PESO Approval is an important part of this process. The Petroleum and Explosives Safety Organisation (PESO) administers the relevant provisions of the Gas Cylinders Rules, 2016, including approval and licensing requirements for CNG/CBG dispensing stations. PESO's current Standard Operating Procedure identifies Form G as the licence framework for dispensing compressed natural gas or compressed biogas as automotive fuel.

Understanding the approval process at the planning stage can help project developers prepare the required documents, layouts and technical information more systematically.

What Is PESO Approval for a CNG Station?

PESO approval relates to the regulatory approval and licensing of facilities involved in dispensing CNG or CBG as automotive fuel.

Under the Gas Cylinders Rules, 2016, Form G is the licence for dispensing CNG/CBG in a dispensing station. PESO's SOP states that its Circle offices are authorized to grant approval and licences, while endorsement of licences is handled by Circle and Sub-Circle offices.

The approval process is intended to verify that the proposed installation complies with applicable rules, approved layouts, safety provisions and other requirements.

Why Is PESO Approval Important for CNG Stations?

CNG stations contain high-pressure gas systems and equipment such as compressors, storage cascades, dispensers, valves, piping and associated safety systems. Proper planning and regulatory review are therefore important before the facility becomes operational.

PESO's process considers the proposed layout, surrounding area, land possession, firefighting arrangements and compliance with relevant requirements. The current SOP specifically states that compliance with OISD-179 is to be verified as part of the prior-approval process for CNG/CBG dispensing stations.

This makes regulatory planning an important part of CNG station development rather than something that should be addressed only near commissioning.

What Documents Are Required for Prior Approval?

PESO's current SOP lists several documents for obtaining prior approval for a Form G CNG/CBG licence.

These include:

• Application in Form C
• Scaled layout plan and specifications
• Details of the surrounding area within 100 metres of the proposed licensed facilities
• Applicable fee
• Proof of ownership and legal and physical possession of the land
• Existing retail-outlet licence details where the CNG facility is part of a retail outlet
• Verification of adequate firefighting facilities

The layout must clearly indicate how the provisions of the applicable rules will be complied with. PESO also specifies that OISD-179 compliance is to be verified during this stage.

Preparing these documents accurately can reduce avoidable queries during the approval process.

Is a District Magistrate NOC Required?

The requirement depends on the type of CNG installation.

According to PESO's FAQ for Form G approvals, a standalone CNG station requires the relevant District Magistrate NOC. The FAQ also states that where a CNG facility forms part of an existing Form XIV retail outlet or an LNG station, a fresh District Magistrate NOC is not required in the same manner; the existing NOC is to be submitted as applicable.

Because requirements can depend on the project configuration, applicants should verify the applicable documentation for their specific site before submission.

What Equipment Details Are Needed?

Equipment information is an important part of the approval and licensing documentation.

PESO's FAQ specifies that details of CNG cascades, compressors and dispensers should be submitted. Cascade information includes total water capacity, number of cylinders, individual cylinder water capacity and the latest hydro-test details.

For compressors, the documentation includes compressor capacity in SCMH and applicable CCE approval details. Information concerning dispensers is also required. PESO further notes that structural adequacy related to the superstructure and the static and dynamic loads or vibrations from equipment operation should be supported by a report from a reputed structural engineer.

Accurate equipment data therefore needs to be available before the application is finalized.

How Important Is the Site Layout?

The site layout is one of the key elements of the approval process.

The proposed drawing needs to show the licensed facilities and demonstrate compliance with applicable safety requirements. The surrounding area within 100 metres also needs to be identified for the prior-approval application.

PESO's current SOP also specifies inter-distance requirements between important CNG station facilities. For example, its published table includes minimum distances between compressors, dispensing units, storage cascades and boundary walls. The actual distances depend on the facility and installation configuration.

This is why site planning should be completed with the applicable requirements in mind rather than attempting to fit safety distances into an already finalized layout.

What Happens After Prior Approval?

Prior approval is only one stage of the licensing process.

PESO's SOP states that documents for the grant of the Form G licence include the relevant application, fee, proof of legal possession of land, verification of the as-built drawing against the drawing approved during prior approval, firefighting verification and applicable clearances from local authorities.

After the required documents are received, the inspecting office is advised to inspect the premises. The licence can then be endorsed when the premises are found to be in order.

This means that construction should follow the approved design closely. Significant deviations between approved drawings and the final installation can create additional compliance issues.

What About Firefighting and Local Clearances?

Firefighting arrangements are specifically considered during the PESO approval and licensing process.

The current SOP requires verification of the adequacy of firefighting facilities in accordance with the Gas Cylinders Rules and relevant codes for flammable-gas filling operations. It also identifies clearances from local authorities such as the State Pollution Control Board, Fire authorities and Panchayat, where applicable.

The exact local approvals will depend on the location and configuration of the facility.

Are CNG Compressors Also Subject to Approval?

Yes. Compressor-related compliance is an important part of CNG station development.

PESO published a specific update in April 2026 concerning approval of CNG/CBG gas compressors proposed for installation in premises covered under Forms E, F and G of the Gas Cylinders Rules, 2016.

The station developer should therefore ensure that the compressor equipment and supporting documentation are addressed as part of the overall regulatory planning.

How Can Companies Prepare for CNG Station PESO Approval?

A structured preparation process can make regulatory coordination easier. Project teams should begin by reviewing the applicable Gas Cylinders Rules, relevant PESO procedures and site-specific requirements.

A practical preparation checklist includes:

1. Confirming the proposed site and legal possession documents.
2. Preparing a detailed scaled site layout.
3. Identifying surrounding facilities and the required 100-metre area.
4. Finalizing compressor, cascade and dispenser specifications.
5. Checking applicable safety distances.
6. Preparing firefighting arrangements.
7. Obtaining applicable local clearances and NOCs.
8. Submitting the required application and documents through the prescribed online process.
9. Constructing the facility according to the approved layout.
10. Preparing as-built documentation for inspection and licensing.

PESO's official SOP and FAQ should be consulted for the latest application requirements because procedures and online modules can change. PESO's website recorded a July 2026 launch of an online combined licence application module covering automotive fuel dispensing stations under the Petroleum Rules, Gas Cylinders Rules and SMPV(U) Rules.

What Is the Role of Professional Technical Support?

CNG station development involves engineering, regulatory documentation, equipment selection, construction and commissioning. Professional technical support can help coordinate these activities and ensure that the proposed design is developed with applicable approval requirements in mind.

A knowledgeable project team can assist with layout preparation, equipment documentation, technical coordination, compliance reviews, inspection preparation and as-built documentation.

The goal is not simply to obtain an approval but to develop a CNG facility that remains aligned with the approved design and applicable safety requirements throughout construction and operation.

Conclusion

CNG Station PESO Approval is a critical regulatory step in developing a compliant CNG or CBG dispensing facility in India. The process involves prior approval, site and layout documentation, equipment details, safety-distance considerations, firefighting arrangements, applicable NOCs and inspection before licensing.

By addressing regulatory requirements during the design and planning stages, project developers can create a clearer pathway from site selection and engineering through construction, inspection and final licensing. Since PESO procedures and online application systems can be updated, project teams should always verify the latest requirements directly through official PESO resources before submitting an application.