Compliance you can stand behind.
OPAL, LEEA, API and BS standard inspection plus independent third-party certification to ISO 17020 — audit-ready, defensible records for Oman’s oil & gas and industrial sectors.
Meet every standard that matters in Oman.
Operating in Oman means meeting OPAL, LEEA, API and British Standard requirements. GCS delivers inspection and certification aligned to each, citing clause references and issuing Certificates of Conformity, so your equipment and documentation pass audits first time.
Explore each discipline in depth.
Click through to the dedicated page for each service — complete with its own scope, standards and FAQs.
OPAL-Compliant Inspection Services
Lifting, equipment and safety inspections that meet OPAL (Oman Petroleum & Alternative…
View pageLEEA Standard Compliance Inspection
Lifting equipment examined and certified to LEEA COPSULE by a LEEA Full Member, giving you…
View pageAPI Standard Inspection Services
Vessels, piping and storage tanks inspected to API 510, API 570 and API 653 by certified…
View pageBS Standard Compliance Verification
Equipment and inspections verified against British Standards — BS 7121, the BS EN…
View pageThird-Party Inspection & Certification
Independent third-party inspection and certification — impartial verification and…
View pageFrameworks we work to.
From enquiry to certificate.
Every job follows the same disciplined sequence so your team and your insurer always speak the same language.
Document review
OEM data, prior reports and service history reviewed before mobilising.
On-site examination
Visual, functional and dimensional checks against the checklist, fully photographed.
NDT / testing
Surface or volumetric NDT and functional or load testing as the code requires.
Findings & sentencing
Defects classified A/B/C, photographed and sentenced against the governing standard.
Certificate & tag
Certificate of Conformity and colour-coded tag issued within 5 working days.
Built for accuracy, independence & accountability.
Precision
Every measurement traceable to international standards.
Independence
Independent third-party reporting recognised by EPC majors.
Safety First
HSE-compliant operations on every job we touch.
Partnership
Single point of contact, fast response, accountable delivery.
Questions our clients ask most often.
Which standards do you certify against?
OPAL for Oman oil & gas, LEEA COPSULE for lifting, API 510/570/653 for fixed equipment, and the BS / BS EN series for cranes, slings and flaw assessment — plus any code named in your specification.
Is GCS a LEEA member?
Yes. GCS is a Full Member of the Lifting Equipment Engineers Association (LEEA) and operates an ISO 17020 inspection scheme — the de-facto standard for credible lifting inspection in Oman.
What certification do you issue?
A formal report with photographs and findings plus a Certificate of Conformity citing the specific clause references. Hard-copy and electronic certificates are available, and records are retained for audit.
How quickly can GCS mobilise compliance and certification inspection in Oman?
For routine work in Muscat, Sohar or Duqm, mobilisation is typically within 2 working days. Emergency and field jobs can be mobilised same-day, with reports issued within 5 working days.