What does an IQA do?
An internal quality assurer monitors and supports the assessors in a training centre, so that every learner is judged against the same standard in the same way. Where an assessor decides whether one learner has met a standard, the IQA checks that the assessors themselves are making sound, consistent decisions across all learners.
The core duties of an IQA are:
- Sampling: planning and reviewing a selection of assessors' decisions and the evidence behind them
- Standardisation: running meetings where assessors compare judgements so everyone marks to the same standard
- Supporting assessors: giving feedback, coaching and continuing professional development
- Observation: watching assessors carry out assessments and giving feedback
- Managing records: keeping the quality assurance records a centre and awarding organisation require
- External quality assurance: preparing for and hosting the awarding organisation's visits
The IQA is a centre's internal safeguard. If assessment drifts, learners could be certified who have not met the standard, or held back who have. The IQA catches that before the awarding organisation does.
What is IQA sampling?
Sampling is the IQA's main tool: rather than re-checking every assessment, the IQA reviews a planned selection that covers all assessors, units, learners and assessment methods over time. A good sampling plan gives confidence in the whole cohort without duplicating every assessor's work.
IQAs use several sampling patterns, often together:
| Sampling type | What it covers |
|---|---|
| Horizontal | Several units for one learner |
| Vertical | One unit across several learners or assessors |
| Diagonal | A spread across units and learners for an overall picture |
| Thematic | A particular activity, method or risk area |
Sampling also spans the assessment journey: before assessment (planning), during (interim), and after (summative). New or struggling assessors are usually sampled more heavily than experienced ones. The plan is risk-based, not random.
What qualification do you need to be an IQA?
To work as an internal quality assurer you need a recognised Level 4 internal quality assurance qualification. In the City & Guilds 6317 suite there are three, and which you need depends on whether you only assure assessment or also lead the quality assurance function.
| Qualification | C&G number | Ofqual reference | Credits | GLH | TQT |
|---|---|---|---|---|---|
| Level 4 Award in Understanding the Internal Quality Assurance of Assessment Processes and Practice | 6317-40 | 501/1649/6 | 6 | 45 | 60 |
| Level 4 Award in the Internal Quality Assurance of Assessment Processes and Practice | 6317-41 | 501/1678/2 | 12 | 90 | 120 |
| Level 4 Certificate in Leading the Internal Quality Assurance of Assessment Processes and Practice | 6317-42 | 501/1680/0 | 17 | 115 | 170 |
Which one to take:
- 6317-40 is knowledge-only (unit 401, Understanding the Principles and Practices of Internally Assuring the Quality of Assessment). It proves you understand IQA, but does not qualify you to practise. It suits managers who need the theory.
- 6317-41 is the working IQA qualification. It adds unit 402 (Internally Assure the Quality of Assessment), the practical unit where you quality-assure real assessors. This is the one most IQA jobs ask for.
- 6317-42 is for leaders. It adds unit 403/703 (Plan, Allocate and Monitor Work in own Area of Responsibility), for people who run a team of assessors and IQAs.
Older qualifications such as the V1 verifier award or the D34 unit are often still accepted. Confirm with the awarding organisation, as acceptance varies.
How do you become an IQA?
Becoming an IQA is a progression, not a starting point: you qualify and work as an assessor first, then move up into quality assurance. You cannot complete the practical IQA qualification without real assessors to assure.
- Be occupationally competent. You need credible knowledge of the subject being assessed, usually from your own trade qualification and experience.
- Qualify and work as an assessor. Hold an assessor qualification such as the CAVA and build experience assessing learners. IQA roles expect assessing experience behind you.
- Get access to assessors to quality-assure. The practical unit (402) requires you to internally assure the work of real assessors, so you need a role or placement that provides this.
- Complete the Level 4 qualification. Take 6317-41 for a practising IQA role, or 6317-42 if you will also lead the function.
- Keep your competence current. Awarding organisations expect ongoing continuing professional development and current occupational knowledge.
What is the difference between an IQA and an EQA?
An internal quality assurer (IQA) works for the training centre and checks its assessors. An external quality assurer (EQA) works for the awarding organisation and checks the centre, including its IQA. They are layers of the same system: the IQA assures assessment inside the centre, and the EQA assures the centre from outside.
| IQA | EQA | |
|---|---|---|
| Works for | The training centre or employer | The awarding organisation |
| Checks | The assessors | The centre, including the IQA |
| Based | Inside the centre | Visits or reviews remotely |
| Purpose | Consistent, valid assessment within the centre | Consistent standards across all centres |
The chain runs: assessor judges the learner, IQA assures the assessor, EQA assures the centre and its IQA. Each layer protects the credibility of the certificate the learner ends up with.
IQA vs assessor: what is the difference?
An assessor judges learners; an IQA judges the assessing. The assessor is closest to the learner, deciding whether their evidence meets the standard. The IQA steps back and checks that those decisions are sound and consistent across the whole team.
The two roles share a qualification family. Both the Level 3 assessor qualifications and the Level 4 IQA qualifications sit in the same City & Guilds 6317 suite. A common career path is assessor first, then IQA once you have the experience, as set out in our guide to tutor, assessor or IQA.
Is becoming an IQA worth it?
Becoming an IQA is worth considering if you already assess and want to move into a more senior, better-paid quality role without leaving your trade behind. The IQA is a required part of delivering any regulated vocational qualification, so the role exists wherever assessment happens, across construction, retrofit, engineering, care and more.
The honest trade-off is that the IQA role is paperwork-heavy and carries responsibility for a centre's compliance. If an external quality assurer finds the assessment unsound, the IQA is accountable. It suits methodical people who are comfortable with records, standards and giving other professionals feedback.
Frequently asked questions
Do I need to be an assessor before becoming an IQA?
In practice, yes. The practical IQA qualification requires you to quality-assure real assessors, and IQA roles expect assessing experience. You need to understand assessment from the inside before you can assure it. The knowledge-only award (6317-40) can be taken without assessing experience, but it does not qualify you to practise.
What is the difference between the IQA Award and the IQA Certificate?
The Level 4 Award in the Internal Quality Assurance of Assessment (6317-41) qualifies you to work as an IQA. The Level 4 Certificate in Leading the Internal Quality Assurance of Assessment (6317-42) adds a unit on planning and monitoring work in your area of responsibility, for people who lead a team of assessors and IQAs.
Is "IQA" the same as "IV" or "internal verifier"?
They are the same role under different names. "Internal verifier" and the V1 award are the older terms; "internal quality assurer" is the current one. Job adverts still use both. If you hold a V1 verifier qualification, many centres accept it, but check with the awarding organisation.
Can an IQA also be an assessor on the same qualification?
An IQA can be an assessor, but not quality-assure their own assessment decisions, because that would remove the independent check. Centres manage this so that an IQA samples other assessors' work, not their own.
Does an IQA qualification expire?
No. The Level 4 IQA qualifications do not expire. Awarding organisations and employers expect evidence of current practice and continuing professional development, and occupational knowledge that stays up to date.
How Nexis Academy can help
Nexis Academy is a City & Guilds Approved Centre (T91185) in Manchester. Assessing and quality assurance courses are in development as part of our growing portfolio, so contact our team to register your interest.
We are also recruiting qualified IQAs for our own City & Guilds programmes. If you hold a Level 4 IQA qualification and retrofit or construction knowledge, see careers at Nexis Academy.
See also Level 4 IQA Award vs Certificate in Leading IQA, how to become a vocational assessor.
See also how to become an IQA: experience, evidence and getting your first assessors and quality nominee vs IQA.
Sources
- City & Guilds, Level 3 and 4 Awards and Certificates in Assessment and Quality Assurance (6317-30-33, 40-42) Qualification Handbook v1.8, November 2025: Level 4 qualification tables and structures (units 401, 402, 403/703).