Skip to content

Intermediate programme

API 579 Fitness-for-Service of Piping, Vessels and Tanks

Deciding whether damaged equipment can stay in service, using the assessment levels in API 579.

Duration
5 days
Level
Intermediate
Next date
2 to 6 November 2026
Fee from
US$995live online

Read the programme brochure

ClassroomLive onlineIn house

Overview

Equipment comes out of inspection with a flaw and the question is always the same: run, repair or replace. Answering it by judgement is how plants either shut down work that was safe or keep running something that was not. This standard replaces the judgement with an assessment, and it is layered deliberately, from a conservative screening any competent engineer can run to a detailed analysis that needs a specialist. The week covers the common assessments in the order a plant meets them, works each on real geometry and real readings, and is honest about where a Level 1 result should send you upward rather than let you sign.

It runs 7 times over the published calendar, in 6 cities and live online. Every date is the same programme with the same content and the same certificate.

What you will be able to do

  • Choose the assessment level that suits the flaw and the data available.
  • Run general and local metal loss assessments on real measurements.
  • Assess pitting, blisters, laminations, weld misalignment and shell distortion.
  • Carry out a crack like flaw assessment, and understand what it rests on.
  • Set a remaining life and an inspection interval from the result.

Who should attend

Integrity, reliability and mechanical engineers, senior inspectors, plant engineers making run or repair decisions, and consultants supporting turnaround scopes.

Is the level right for you?

This is an intermediate level programme. It assumes you are working in or moving into the area it covers, and it is built around your own material rather than a case study. If you are unsure, ask an advisor before registering rather than after.

Ask an advisor

How it is taught

Short input, then work. Across 5 days of roughly 6 teaching hours each, the balance sits deliberately with the second: a programme where the trainer talks for six hours produces notes rather than capability.

  • Your own material

    Exercises run on situations delegates bring, not on a case study written for a different organisation in a different decade.

  • A capped cohort

    Small enough that everybody is asked something. Executive programmes are capped tighter still.

  • Practice under scrutiny

    The difficult conversation, the challenged assumption, the decision defended out loud. Judgement is not built by watching.

  • Something to take back

    Each day ends with a thing you can use on Monday rather than a slide deck you will not reopen.

The programme, day by day

Day 1The framework

The framework

  • Levels 1, 2 and 3, and what each demands
  • Data quality, and the assessment it will support
  • Where fitness for service sits beside the inspection codes
Day 2Metal loss

Metal loss

  • General metal loss and thickness profiles
  • Local thin areas
  • Remaining strength factor
  • Worked examples on vessels, piping and tanks
Day 3Pitting and laminations

Pitting and laminations

  • Pitting couples and grading
  • Blisters and hydrogen damage
  • Laminations, and when they matter
Day 4Geometry and crack like flaws

Geometry and crack like flaws

  • Weld misalignment and out of roundness
  • Crack like flaw assessment and the failure assessment diagram
  • Fracture toughness, and the problem of estimating it
Day 5Using the answer

Using the answer

  • Remaining life and monitoring
  • What to document, and for whom
  • Communicating a marginal result without losing the argument

What you leave with

  • Completed assessments on your own equipment data.
  • A decision record showing the basis of a run or repair call.
  • A route for escalating an assessment when Level 1 fails.

The certificate

A GATI certificate recording what you attended, issued after the programme has run and attendance has been taken. Attending at least 80 per cent of the days earns a certificate of completion; attending less earns a certificate of attendance stating exactly what was attended.

Every certificate carries a code that anybody can check against GATI's own record, which is what makes it worth holding. It records participation. This site will not imply one it does not have.

Questions

Who is API 579 Fitness-for-Service of Piping, Vessels and Tanks for?
Integrity, reliability and mechanical engineers, senior inspectors, plant engineers making run or repair decisions, and consultants supporting turnaround scopes. It runs at intermediate level within Welding, Corrosion and Inspection, so it assumes you are working in or moving into that area rather than meeting it for the first time. If you are unsure whether the level fits, ask an advisor before registering rather than after.
How long is it, and what does a day look like?
5 days, running to roughly 6 teaching hours a day. Sessions are built around your own material rather than a case study, so a day alternates between short input and working on something you brought. The full outline is on this page, day by day.
What does it cost, and what is included?
The next published date is Live online at US$995 per delegate. The fee covers tuition, all programme materials and the certificate. Travel, accommodation and visas are arranged by the delegate. Fees vary by city, and every published date shows its own.
Can it be delivered for my organisation only?
Yes. Any published programme can run as a private cohort, on dates that suit you, in your city or online, built around your own material. That is a different conversation from registering an individual, and it starts with what capability you are trying to build rather than with a course title.
What certificate do I get?
A GATI certificate recording what you attended, issued after the programme has run and attendance has been taken. Attending at least 80 per cent of the days earns a certificate of completion; attending less earns a certificate of attendance stating exactly what was attended. Every certificate carries a code that anybody can check against GATI's own record.
Is the online version the same programme?
Yes. The same faculty, the same material, the same cohort cap and the same certificate. It is not a recording and it is not a reduced version. It exists because travel budgets and visa timelines rule people out of a room they should be in. The classroom version runs in Cape Town, Cairo, Gaborone, Durban.

Want to take this further?

Register on a published date, or tell an advisor what you need and they will come back with something specific rather than a brochure.

Related subjects