1. Introduction

Pressure vessel testing is a specialised industrial service involving the inspection, examination, certification and safety verification of equipment designed to contain gases or liquids under pressure. It is essential in industries such as oil and gas, petrochemicals, pharmaceuticals, power generation, chemicals, manufacturing, shipping and infrastructure.

Pressure vessels include:

Boilers and industrial steam generators.

LPG, CNG and hydrogen storage tanks.

Compressed-air receivers.

Chemical reactors and autoclaves.

Industrial gas cylinders.

Heat exchangers and high-pressure pipelines.

Testing providers generally perform hydrostatic testing, pneumatic testing, ultrasonic testing, radiographic examination, corrosion assessment, pressure-relief valve testing and periodic safety inspections.

Although pressure vessel testing is a safety-critical activity, it can create significant competition-law concerns when a limited number of accredited laboratories or inspection agencies control access to testing and certification.

The central competition-law issue is whether technical safety requirements are being used legitimately to protect public safety or strategically to exclude competing testing providers, increase costs, restrict market entry or favour particular manufacturers.

Competition law must therefore balance two objectives:

Ensuring that pressure vessels meet strict technical and safety standards.

Maintaining competitive, transparent and non-discriminatory testing markets.

2. Relevant Competition-Law Framework

The following legal principles are relevant across jurisdictions, although their statutory application differs.

A. Anti-competitive agreements

Testing laboratories, inspection agencies, manufacturers and industry associations may enter into agreements that restrict competition.

Examples include:

Agreements fixing hydrostatic testing charges.

Allocation of geographical testing territories.

Agreements not to provide services to particular manufacturers.

Collective refusal to certify vessels tested by competing laboratories.

Agreements restricting the recruitment of qualified testing engineers.

Coordinated refusal to accept independent inspection reports.

Such conduct may constitute price-fixing, market allocation, collective boycotts or other restrictive agreements.

B. Abuse of dominant position

A testing provider may acquire market power because it possesses:

Exclusive regulatory accreditation.

Unique testing equipment.

Proprietary testing technology.

Government-approved certification status.

Exclusive access to testing facilities.

Control over essential inspection infrastructure.

A dominant testing provider may abuse its position through excessive pricing, discriminatory testing conditions, unjustified refusal to test, tying arrangements or exclusionary certification practices.

C. Market foreclosure

Market foreclosure occurs when competing testing agencies cannot obtain sufficient access to customers, facilities, accreditation or essential technical resources.

For example, if a dominant certification agency requires manufacturers to purchase testing, calibration, inspection and certification services exclusively from it, competing laboratories may be prevented from entering the market.

D. Merger control

Consolidation between pressure vessel testing companies may reduce competition, particularly where industrial customers have limited alternative providers.

Competition authorities should examine:

Horizontal consolidation between testing laboratories.

Vertical integration between vessel manufacturers and testing agencies.

Acquisitions of accredited laboratories.

Control over specialised testing equipment.

Elimination of independent certification providers.

E. Essential facilities and access discrimination

Testing infrastructure may become competitively significant where duplication is economically impractical.

A dominant facility owner should not necessarily be required to share every asset. However, where applicable legal conditions are satisfied, unjustified refusal to provide access may raise essential-facilities or refusal-to-deal concerns.

3. Major Competition Issues in Pressure Vessel Testing

3.1 Monopoly in accredited testing services

One of the most important concerns is the concentration of accredited pressure vessel testing services in a small number of laboratories.

Testing facilities require substantial capital investment in:

High-pressure test rigs.

Hydraulic pumping systems.

Non-destructive testing equipment.

Calibrated pressure gauges.

Qualified inspection personnel.

Laboratory accreditation and quality-management systems.

These requirements can create legitimate barriers to entry. However, incumbent providers may exploit these barriers to maintain monopoly power.

Illustration: Suppose a single accredited laboratory controls 75% of pressure vessel testing services in a particular industrial region. It begins charging significantly higher testing fees because customers have no practical alternatives.

This may raise concerns about excessive pricing and abuse of dominance, depending on the applicable jurisdiction and evidence.

3.2 Exclusive certification arrangements

A manufacturer may enter into an exclusive arrangement with a particular testing laboratory.

Such agreements may require:

All pressure vessels to be tested by one laboratory.

Customers to obtain certification through a designated agency.

Independent laboratories to be excluded from the supply chain.

Manufacturers to use only approved inspection contractors.

Exclusivity is not automatically unlawful. It becomes problematic where its duration, coverage, market power and practical effects substantially restrict competing laboratories.

3.3 Discriminatory testing charges

A dominant testing laboratory may charge different prices to similarly situated customers without objective justification.

Examples include:

Lower charges for affiliated manufacturers.

Higher inspection fees for independent manufacturers.

Preferential scheduling for vertically integrated companies.

Additional charges imposed selectively on competing laboratories' customers.

Competition authorities should examine whether price differences reflect legitimate differences in testing complexity, risk, volume, distance or resource requirements.

3.4 Refusal to provide testing and certification

A dominant testing provider may refuse to test pressure vessels manufactured by particular businesses.

Refusal may be justified where:

Equipment does not satisfy safety standards.

Testing documentation is incomplete.

The vessel presents unacceptable technical risks.

The laboratory lacks the necessary equipment or accreditation.

However, refusal may become exclusionary where it is arbitrary, discriminatory or intended to prevent a competitor from accessing customers.

The distinction between legitimate safety refusal and anti-competitive exclusion is particularly important in this industry.

3.5 Collusion among testing laboratories

Independent testing laboratories may coordinate their commercial activities.

Potential arrangements include:

Fixing standard testing fees.

Dividing industrial customers.

Allocating geographical territories.

Coordinating inspection surcharges.

Agreeing not to recruit each other's engineers.

Sharing commercially sensitive bidding information.

For example, five laboratories participating in government pressure vessel inspection tenders may agree not to undercut one another.

Such conduct may constitute bid-rigging or cartel activity.

3.6 Vertical foreclosure by vessel manufacturers

Large pressure vessel manufacturers may establish or acquire their own testing laboratories.

Vertical integration can improve efficiency, reduce inspection delays and enhance technical coordination.

However, a vertically integrated manufacturer may disadvantage competing manufacturers by:

Reserving testing capacity for its own products.

Refusing independent inspection services.

Offering preferential testing rates to affiliated companies.

Restricting access to specialised equipment.

Using confidential inspection information to gain commercial advantages.

The relevant question is whether integration produces efficiencies or enables the manufacturer to foreclose rival businesses.

3.7 Accreditation and regulatory entry barriers

Accreditation is essential for establishing technical competence and reliability.

Nevertheless, accreditation requirements may create competition problems when:

Recognition is restricted to a single accreditation body without adequate justification.

Accreditation applications are deliberately delayed.

Fees are disproportionate to assessment costs.

Equivalent foreign accreditation is rejected without objective reasons.

Technical requirements are designed around incumbent laboratories.

Existing providers influence the accreditation process to exclude new entrants.

Regulatory authorities must distinguish legitimate safety qualifications from unnecessarily restrictive entry conditions.

3.8 Tying and bundling of inspection services

A dominant testing laboratory may require customers to purchase several services together.

For example, customers seeking hydrostatic testing may also be required to purchase:

Ultrasonic testing.

Radiographic examination.

Calibration services.

Periodic maintenance inspections.

Certification and documentation services.

Bundling may improve safety coordination and reduce costs. However, compulsory bundling can restrict competition where separate providers are capable of supplying individual services.

3.9 Bid-rigging in public procurement

Public-sector organisations frequently procure pressure vessel inspection and testing services.

Competition concerns arise when laboratories coordinate:

Tender prices.

Technical specifications.

Winning bidders.

Subcontracting arrangements.

Bid withdrawal.

Rotation of successful contractors.

Bid-rigging can increase public expenditure and undermine the quality and independence of industrial safety inspections.

3.10 Digital testing platforms and data foreclosure

Modern pressure vessel testing increasingly uses digital inspection records, predictive maintenance software, automated monitoring and cloud-based certification platforms.

A dominant platform may control:

Historical pressure-test records.

Corrosion and fatigue data.

Digital inspection certificates.

Equipment-performance databases.

Predictive failure models.

Manufacturer-specific inspection histories.

Competition problems may arise when the platform prevents competing laboratories from accessing relevant data or makes it difficult for customers to transfer their testing records.

Data portability, interoperability and non-discriminatory access can therefore become important competition-policy issues.

4. Six Important Case Laws and Their Application

The following cases provide relevant legal principles for pressure vessel testing. Some concern accreditation, certification, infrastructure access or adjacent regulated markets rather than pressure vessel testing itself. Their application is therefore analogical, not a claim that the courts directly adjudicated pressure vessel testing markets.

Case 1. Accreditation Commission for Conformity Assessment Bodies Pvt. Ltd. v. Quality Council of India and Others

Competition Commission of India, Case No. 51 of 2012

This is particularly relevant because it concerns accreditation and conformity assessment.

The dispute involved allegations relating to accreditation arrangements and the competitive position of accreditation organisations.

The competition concerns included:

Recognition of competing accreditation bodies.

Restrictions on market entry.

Government recognition arrangements.

Alleged discrimination against competing accreditation providers.

The relationship between accreditation and commercial competition.

Relevance to pressure vessel testing:

A similar dispute could arise if a particular accreditation organisation or certification body effectively controls recognition of pressure vessel testing laboratories.

If accreditation requirements unnecessarily exclude technically competent competitors, the arrangement may create an artificial barrier to entry.

The case illustrates why accreditation systems should be transparent, objective and non-discriminatory.

Case 2. Oscar Bronner GmbH & Co KG v. Mediaprint

Case C-7/97, European Court of Justice (1998)

This is a leading authority on refusal to provide access to essential facilities.

The dispute concerned access to a newspaper distribution system controlled by a dominant newspaper publisher.

The Court established strict conditions for treating refusal of access to infrastructure as an abuse of dominance.

The important considerations include:

Whether the facility is indispensable.

Whether no actual or potential alternative exists.

Whether refusal is capable of eliminating effective competition.

Whether the refusal lacks objective justification.

Relevance to pressure vessel testing:

Suppose a dominant laboratory controls the only technically suitable high-pressure testing facility in a particular market.

An independent testing company seeks access but is refused.

The Bronner principles may become relevant when assessing whether the facility is genuinely indispensable and whether the refusal unlawfully excludes competition.

Importantly, the mere fact that access would be commercially convenient or cheaper does not establish indispensability.

Case 3. IMS Health GmbH & Co. OHG v. NDC Health GmbH & Co. KG

Case C-418/01, European Court of Justice (2004)

This case concerned intellectual property, market dominance and access to a data structure used in pharmaceutical market reporting.

The Court considered when refusal to license a protected resource could constitute an abuse of dominance.

The judgment developed important conditions relating to indispensable inputs, elimination of competition and the absence of objective justification.

Relevance to pressure vessel testing:

Consider a laboratory that controls a proprietary digital database containing historical pressure-test results, vessel specifications and inspection histories.

If competing laboratories cannot provide meaningful testing services without access to a particular database, the refusal to provide access may raise competition concerns.

However, proprietary data is not automatically an essential facility. The indispensability and exclusionary-effect requirements must be established.

Case 4. MOTOE v. Elliniko Dimosio

Case C-49/07, European Court of Justice (2008)

This case concerned the organisation of motorcycle events and an organisation's involvement in granting authorisations for competing events.

The Court considered the competition implications of giving an entity commercial interests while also allowing it to participate in decisions concerning competitors.

It emphasised the importance of safeguards against conflicts of interest when an organisation exercises regulatory or authorisation powers.

Relevance to pressure vessel testing:

Suppose a pressure vessel testing association:

Operates a commercial testing laboratory.

Participates in approving competing laboratories.

Influences accreditation requirements.

Determines whether competitors qualify for industry certification.

This creates a risk of discriminatory treatment.

A testing organisation should not be able to exploit regulatory or quasi-regulatory powers to protect its own commercial operations.

Case 5. Aerotec International, Inc. v. Honeywell International Inc.

United States Court of Appeals for the Ninth Circuit (2016), No. 14-15562

This case concerned access to parts and services necessary for aircraft auxiliary power unit repair.

The dispute involved allegations that a manufacturer controlling important inputs had restricted access for an independent repair provider.

The court considered the essential-facilities theory and the requirements for establishing unlawful exclusion.

Relevance to pressure vessel testing:

Suppose a manufacturer controls specialised testing equipment, proprietary inspection software or essential technical components required by independent laboratories.

If it refuses access in order to prevent competing testing providers from operating, the conduct may warrant competition scrutiny.

The case is useful for examining the relationship between control of essential inputs and downstream competition.

It should also be remembered that US law treats the essential-facilities doctrine cautiously.

Case 6. Verizon Communications Inc. v. Law Offices of Curtis V. Trinko, LLP

540 U.S. 398 (2004), United States Supreme Court

This is an important authority concerning monopolisation and refusal to deal.

The Supreme Court emphasised that a monopolist generally has no broad obligation to assist competitors.

It recognised that compulsory dealing may undermine incentives to invest, innovate and maintain infrastructure.

Relevance to pressure vessel testing:

A dominant testing laboratory cannot automatically be compelled to share all its equipment, personnel, software or proprietary inspection systems with competitors.

Competition authorities must distinguish legitimate independent business decisions from exclusionary conduct that satisfies the applicable legal standard.

The judgment is particularly relevant when considering whether access remedies are justified in specialised industrial testing markets.

5. Additional Relevant Competition-Law Precedents

The following decisions provide further useful principles for analysing pressure vessel testing disputes.

7. Shamsher Kataria v. Honda Siel Cars India Ltd. and Others

CCI, Case No. 03 of 2011

This case concerned competition restrictions in the automobile aftermarket, including access to spare parts, diagnostic tools and repair information.

The CCI examined how control over essential inputs could restrict independent service providers.

Application: A dominant pressure vessel manufacturer or testing-equipment supplier should not unnecessarily restrict independent laboratories' access to diagnostic equipment, technical information or replacement components where such restrictions foreclose competition.

8. United Brands Company v. Commission

Case 27/76, European Court of Justice (1978)

This case addressed abuse of dominance, including discriminatory trading conditions and excessive pricing.

Application: If a dominant pressure vessel testing laboratory charges excessive fees or applies unjustifiably different prices to comparable industrial customers, the principles of United Brands may be relevant.

It is necessary to establish dominance and the applicable legal test for excessive or discriminatory pricing.

9. Slovak Telekom a.s. v. European Commission

Case C-165/19 P, Court of Justice of the European Union (2021)

The case concerned exclusionary conduct involving access to telecommunications infrastructure.

The Court examined the relationship between access restrictions and the essential-facilities doctrine.

Application: It is relevant when a dominant pressure vessel testing provider uses access conditions, technical restrictions or discriminatory arrangements to disadvantage competing testing agencies.

It also illustrates why the legal treatment of access restrictions depends on the precise form of the conduct.

6. Application of Competition Law in India

Pressure vessel testing can raise several issues under the Competition Act, 2002.

A. Section 3 – Anti-competitive agreements

Section 3 prohibits agreements that cause or are likely to cause an appreciable adverse effect on competition in India.

Relevant conduct includes:

Price-fixing among testing laboratories.

Market allocation.

Bid-rigging in inspection tenders.

Agreements restricting testing capacity.

Collective refusal to deal with independent laboratories.

For example, if three accredited testing laboratories agree to maintain identical hydrostatic testing charges, their arrangement may attract scrutiny under Section 3.

B. Section 4 – Abuse of dominant position

Section 4 prohibits abuse of a dominant position.

Potential violations include:

Dominance itself is not prohibited. The abuse of dominance is the relevant legal concern.

C. Section 19 – Investigation and assessment

The Competition Commission of India may examine factors such as:

Market share of testing laboratories.

Size and resources of competitors.

Dependence of customers on particular facilities.

Entry barriers.

Availability of substitutes.

Vertical integration.

Market structure and technological advantages.

The relevant product market might be defined as pressure vessel testing and certification services, or more narrowly by testing methodology, equipment type, regulatory recognition or industrial application.

The geographic market may be local, regional, national or wider, depending on transport costs, accreditation requirements, turnaround times and customer procurement practices.

D. Section 26 – Investigation

Where the statutory requirements are satisfied, the CCI may direct an investigation by the Director General.

For instance, an investigation may be appropriate where several laboratories are suspected of coordinating tender prices or allocating industrial customers.

E. Section 27 – Orders and penalties

Following the requisite findings, the CCI may issue appropriate orders, including:

Directing enterprises to discontinue anti-competitive conduct.

Prohibiting repetition of the conduct.

Imposing monetary penalties.

Modifying anti-competitive agreements.

Issuing other legally permissible remedial directions.

7. Economic Analysis of Pressure Vessel Testing Markets

Competition authorities should examine both market structure and competitive effects.

A. Market concentration

The Herfindahl-Hirschman Index (HHI) can help assess concentration.

\[ HHI=\sum_{i=1}^{n}s_i^2 \]

Here, \(s_i\) represents the percentage market share of each testing provider.

For example:

\[ HHI=50^2+25^2+15^2+10^2 \]

\[ HHI=3450 \]

This indicates a highly concentrated market under commonly used HHI screening approaches. It does not, by itself, establish an infringement.

B. Barriers to entry

The authority should consider:

Capital investment.

Accreditation expenses.

Availability of skilled inspectors.

Access to testing equipment.

Regulatory approval.

Insurance and liability requirements.

Customer switching costs.

C. Price-cost analysis

Authorities may examine whether testing charges are substantially above efficiently incurred costs.

Relevant costs include:

Equipment depreciation.

Calibration expenditure.

Labour costs.

Insurance.

Laboratory maintenance.

Accreditation expenses.

Technical training.

Safety-related expenditure must not be incorrectly treated as an anti-competitive cost.

D. Counterfactual analysis

Authorities should compare the actual market with a hypothetical competitive market.

For example, would testing fees have been lower, waiting periods shorter or service quality higher if independent laboratories had not been excluded?

This helps distinguish genuine technical limitations from exclusionary conduct.

8. Competition Compliance Measures for Pressure Vessel Testing Companies

Testing laboratories and manufacturers should adopt the following measures.

A particularly important safeguard is to separate commercial testing operations from accreditation and certification decisions wherever institutional conflicts of interest arise.

9. Hypothetical Case Study

ABC Pressure Testing Ltd. – Alleged Exclusion of Independent Testing Laboratories

Assume ABC Pressure Testing Ltd. controls approximately 70% of accredited pressure vessel testing services in a major industrial region.

The company adopts the following practices:

Increases testing charges by 45% without an adequately demonstrated cost justification.

Refuses to accept inspection documentation from competing laboratories.

Provides preferential testing schedules to affiliated manufacturers.

Requires customers to purchase calibration and certification services together.

Enters into exclusive arrangements with major industrial manufacturers.

Participates in an industry association that exchanges future pricing information.

Competition-law assessment

Excessive pricing may raise Section 4 concerns.

Refusal to accept independent inspection reports may amount to discriminatory or exclusionary conduct, depending on the circumstances.

Preferential treatment may constitute discriminatory conditions.

Compulsory bundling may amount to tying.

Exclusive arrangements may create foreclosure.

Exchange of future pricing information may facilitate cartel coordination.

Possible remedies

The CCI could investigate the relevant conduct, require discontinuation of established infringements and impose appropriate penalties or other statutory remedies.

However, it should not compel acceptance of technically deficient inspection reports or compromise mandatory safety requirements.

10. Emerging Competition Challenges

Future pressure vessel testing markets will increasingly involve:

AI-based inspection: Dominant providers may use proprietary AI inspection systems to restrict competitors' access to diagnostic technologies.

Hydrogen storage testing: Specialised hydrogen pressure vessel testing may create new accreditation and infrastructure bottlenecks.

Digital certification: Proprietary digital certification systems may prevent customers from transferring inspection records.

Automated ultrasonic testing: Control over specialised robotic inspection systems may create technological entry barriers.

Predictive maintenance: Exclusive access to equipment-performance data may disadvantage independent testing providers.

Cross-border accreditation: Different national recognition systems may restrict foreign testing agencies from competing.

Cloud-based inspection platforms: Platform operators may favour affiliated laboratories through search rankings, referrals or access restrictions.

These developments require competition authorities to assess whether innovation creates legitimate efficiency advantages or is being used to reinforce exclusionary market power.

11. Conclusion

Competition issues in pressure vessel testing arise from the interaction between industrial safety regulation, accreditation, technical infrastructure and commercial market power.

The most significant risks include monopolisation of accredited testing services, discriminatory certification, excessive charges, collusive tendering, exclusive testing arrangements, refusal to provide access and control over digital inspection information.

The cases of Accreditation Commission v. Quality Council of India, Oscar Bronner, IMS Health, MOTOE, Aerotec v. Honeywell and Verizon v. Trinko provide important principles for analysing these concerns.

The central legal principle is that safety regulation must protect the public without unnecessarily protecting incumbent testing providers from competition.

A well-designed competition framework should preserve independent testing, transparent accreditation, fair access to essential infrastructure, objective certification standards and effective enforcement against cartel behaviour.