A DOSH inspector of pressure vessels is a professional registered and approved by Kenya's Directorate of Occupational Safety and Health Services (DOSHS) to examine, test, and certify pressure vessels — including LPG tanks and cylinders — confirming they meet the safety standards required to remain in service. This role sits at the center of Kenya's LPG compliance framework: without a registered examiner's sign-off, a pressure vessel has no independently verified confirmation that it's actually safe to operate.
For the broader picture of inspection in the LPG industry, see LPG Inspector / Examiner: Role & Why It Matters .
What Is DOSHS?
The Directorate of Occupational Safety and Health Services is the body responsible for administering occupational safety requirements in Kenya, including standards relevant to pressure vessels and workplace safety more broadly. Within this framework, registered pressure vessel examiners are authorized to carry out the formal inspections that keep vessels like LPG tanks and cylinders compliant throughout their service life.
The Scope of a DOSH Inspector's Role
A registered DOSH pressure vessel examiner's responsibilities typically include:
Examination of newly manufactured vessels — inspecting LPG cylinders and tanks before they enter circulation, confirming they meet design and manufacturing standards
Periodic revalidation and recertification — re-examining vessels at required intervals throughout their operational life; see our LPG tank recertification guide
Installation verification — confirming that a completed installation meets applicable engineering and safety standards
Incident and damage assessment — examining vessels following an incident, relocation, or when damage is suspected
Certification issuance — formally certifying a vessel as fit for continued service, or flagging issues that need to be addressed
Why Registration Matters
Not everyone claiming inspection expertise carries the same legal or practical weight. A registered DOSH examiner has gone through a formal process to demonstrate the technical competence required for pressure vessel work, and their registration is what makes their certification legally meaningful. This is why verifying an inspector's registration status is a critical due-diligence step — see our related guide on why approved engineers matter for LPG projects for the same principle applied to engineering credentials more broadly.
What Happens During a DOSH Inspection
While specifics vary depending on the vessel type and inspection purpose, a typical inspection by a registered examiner generally includes:
Visual examination for corrosion, damage, or structural wear
Fittings, valves, and safety relief system checks
Pressure testing to confirm the vessel safely holds its rated pressure
Review of documentation and prior inspection history
A formal determination, resulting in either certification or a list of required remediation before certification can be issued
Why This Role Exists
Pressure vessels holding flammable gas under sustained pressure carry risks that aren't always visible from the outside — corrosion, fatigue, and fitting wear can compromise a vessel's integrity gradually. The DOSH inspector role exists specifically to provide an independent, qualified check against these risks at defined points in a vessel's life, rather than leaving safety assessment to informal judgment or the vessel owner's own assumptions.
DOSH Inspectors vs. Other LPG Credentials
It's worth understanding how this role relates to other credentials relevant to LPG work in Kenya:
DOSHS registration
DOSHS registration — specific to pressure vessel examination and occupational safety compliance
EPRA approval
EPRA approval — relevant to petroleum and energy sector regulatory compliance, particularly for bulk supply and distribution; see why an EPRA-approved contractor matters
EBK/IEK engineering registration
EBK/IEK engineering registration — relevant to broader professional engineering standards; see why you need an EBK/IEK registered engineer
Some professionals, including OLPUL's lead inspector, hold DOSHS registration specifically as pressure vessel examiners — a distinct qualification from general engineering credentials, though the two can complement each other on a single project.
How to Verify a DOSH Inspector's Registration
Before relying on an inspection or certification, it's reasonable to ask for the examiner's registration number and confirm their current, valid status. A legitimate registered examiner will provide this without hesitation — it's a credential meant to be verifiable, not simply claimed.
Why This Matters for Every LPG Project
Whether you're installing a new system, due for recertification, or vetting a bulk equipment supplier, having your vessels examined by a genuinely registered DOSH inspector is what makes the resulting certification meaningful — both for regulatory compliance and for actual safety assurance. This applies at every scale, from a single household tank to a large industrial bulk system.
OLPUL Enterprises' Registered Examiner
OLPUL Enterprises is a Kenyan LPG engineering and inspection company based in Nairobi and Kiambu, led by Martin Ng'ang'a Mutambo, a registered and approved pressure vessels examiner by DOSHS (Reg. No. PLT/OSH-24-24-0001381), with technical experience in pressure vessel examination, LPG cylinder and tank inspection, technical assessment, project support, and LPG safety and compliance activities. We provide inspection and certification services across Kenya and the wider East African region.
Frequently Asked Questions
What does a DOSH inspector of pressure vessels do?
They examine, test, and certify pressure vessels like LPG tanks and cylinders, confirming they meet required safety standards at installation and throughout their operational life.
Is DOSH registration the same as EPRA approval?
No, these are distinct credentials. DOSHS registration relates specifically to pressure vessel examination and occupational safety, while EPRA approval relates to petroleum and energy sector regulatory compliance.
How do I verify if someone is a genuinely registered DOSH pressure vessel examiner?
Ask for their registration number and confirm it directly rather than relying on an unverifiable claim. A legitimate examiner will provide this information readily.
Does every LPG tank need to be examined by a DOSH inspector?
Yes, in the sense that periodic examination by a registered examiner is required to keep a vessel compliant and safely in service throughout its lifecycle.
Can a DOSH inspector also be an engineer?
Yes, some professionals hold both engineering credentials and DOSHS pressure vessel examiner registration, though these are technically distinct qualifications covering different aspects of LPG project work.
Who is a registered DOSH pressure vessel examiner I can work with?
OLPUL Enterprises is led by a DOSHS-registered pressure vessels examiner. Contact us to schedule an inspection or discuss your project's compliance requirements.
OLPUL Enterprises
Need a Registered DOSH Examiner for Your LPG System?
OLPUL Enterprises is led by a DOSHS-registered pressure vessels examiner, providing certified inspection services across Kenya.