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Apply to add a Third-Party Inspector

You can add Third-Party Inspectors for Lifting Equipment, Pressure Vessels or steam piping to your organisation's approved personnel. 

At a glance

Who can apply Company representative
How much it costs No cost to apply
How long it takes Up to 8 weeks
Related eServices Registration for WSH Service Providers

Requirements

Applicants need to meet the academic, professional and work experience requirements listed under Documents required.

In addition:

  • Inspectors for Lifting Equipment need to be familiar with at least 2 of the following Standards and Codes: ISO, BSI, ANSI, EN, DIN, ASME, SS and FEM.
  • Inspectors for Pressure Vessels or Steam Piping need to be familiar with at least 2 of the following Standards and Codes: ASME, BS, TEMA, API, AD Merkblatter, TRD Spec, Stoomwezen, JIS.
  • All inspectors need to have a working knowledge of English.

How to apply

Mail the application documents in a CD-ROM to:

Licensing (application for TPIA)
Ministry of Manpower
Occupational Safety and Health Division
1500 Bendemeer Road
Singapore 339946

Documents required

Submit all the documents required with your application.

Separate the submitted files in the following format in your CD:

  • Personal Data Sheet
  • Academic Qualifications
  • Professional Qualifications
  • Curriculum Vitae

For approved inspector of Lifting Equipment

You will need to submit the following:

  • A completed Personal Data Sheet including the marking and stamp used by the proposed inspector. Inspectors must be between 21 and 65 years old at their last birthday.
  • A copy of a basic degree in an engineering discipline from a university or college recognised by the Singapore Professional Engineers Board.
  • Certificates of relevant qualifications in welding technology, welding inspection, lifting equipment inspection, non-destructive testing and other related technologies, including knowledge of the design and manufacturing of mobile or tower cranes.
  • List of projects or services undertaken related to work scope applied for.

For approved inspector of Pressure Vessels or steam piping

You will need to submit the following:

  • A completed Personal Data Sheet including the marking and stamp used by the proposed inspector. Inspectors must be between 21 and 65 years old at their last birthday.
  • Copies of one of the following academic qualifications:
    • A basic degree in an engineering discipline from a university or college recognised by the Singapore Professional Engineers Board.
    • A diploma or technical certificate in an engineering discipline acceptable to the Occupational Safety and Health Division.
  • A list of projects from the past 5 to 7 years showing experience in working with pressure vessels, such as experience in welding technology and inspection, and pressure vessel inspections (especially with steam boilers).
    • Surveyors with a basic degree in engineering must have at least 5 years of relevant experience. The degree must be recognised by the Singapore Professional Engineers Board.
    • Surveyors with a diploma or technical certificate in engineering must have at least 7 years of experience.
  • Certificates of related professional courses attended in the design, manufacture and inspection of pressure vessels, welding technology, welding inspection and other related technologies. The certificates must be certified as true copies by the Third-Party Inspection Agency.

    The certificates include the following:

    For inspector of Pressure Vessels At least one of the following certificates:

    • National Board (NB) of Boiler and Pressure Vessel Inspectors’ Authorised Inspector (AI)
    • API 510 Pressure Vessel Inspector

    Supporting certifications:

    • AWS CWI
    • TWI Level 2 or 3
    • PCN Level 2 or 3
    • API 570, API RP 577
    • ASNT NDT, ACCP Level 2 or 3
    • API 571 – Damage Mechanisms Affecting Fixed Equipment in the Refining Industry, API 580 – RBI
    For inspector of steam piping At least one of the following certificates:
    • American Welding Society’s (AWS) Certified Welding Inspector (CWI) or Senior CWI
    • The Welding Institute’s (TWI) Level 2 Welding Inspector or Level 3 Senior Welding Inspector
    • British Institute’s PCN Level 2 or Level 3
    • API 570 Piping Inspector
    Supporting certifications:
    • API RP 577 - Welding and Metallurgy
    • ASNT NDT Level II certificate
    • ASNT NDT Level III
    • ASNT Level III certification
    • ACCP Level II certification: 5 NDT methods (MT, PT, RT, UT and VT)
    • ACCP Professional Level III