Old Electrical Qualifications: Do Your 2360, 2330 or 2351 Certificates Still Count?

If you trained as an electrician years ago and hold qualifications like the City & Guilds 2360, 2330, 2351, 236, 2394, or 2395, you may be wondering whether they are still valid. Perhaps you left the trade and are returning, or you have been working without formal recognition and now need an ECS card.

The good news is that old qualifications do not expire. They are still recognised as evidence of prior learning by City & Guilds, the JIB, and the ECS. However, you will almost certainly need to update some qualifications — particularly the 18th Edition and possibly your inspection and testing credentials — to meet current standards.

This guide explains exactly which old qualifications map to current ones, what you need to update, and the most efficient route to getting back to full, recognised qualification status. For a guide to the current City & Guilds course numbering system, see our dedicated guide.

City & Guilds electrical qualifications have evolved through several generations. Each new version updates the syllabus to reflect current wiring regulations and industry practices, but the core knowledge carries forward:

236 — the original

The City & Guilds 236 was one of the earliest widely-held electrical installation qualifications. If you trained in the 1970s or early 1980s, this may be what you hold. It covered the fundamentals of electrical installation as they were understood at the time.

2360 — Electrical Installation (1990s)

The 2360 replaced the 236 and became the standard electrical installation qualification through the 1990s. It was structured as Part 1 (foundation) and Part 2 (advanced), broadly equivalent to today's Level 2 and Level 3. Many electricians currently in their 40s and 50s hold this qualification.

2330 — Certificate in Electrotechnical Technology (2000s)

The 2330 replaced the 2360 in the early 2000s. It introduced a modular, unit-based structure and updated the syllabus for the 16th and 17th Edition wiring regulations. It was the last of the "certificate" qualifications before the current "diploma" structure.

2365 — Diploma in Electrical Installation (current)

The 2365 replaced the 2330 and is the current qualification. Available at Level 2 (2365-02) and Level 3 (2365-03), it covers modern wiring regulations (BS 7671:2018, currently amended to A4:2026) and current installation practices.

Inspection and testing qualifications have also evolved over the years:

2394 — Initial Verification

The 2394 covered initial verification of new electrical installations. It has been replaced by the combined 2391-52, which covers both initial verification and periodic inspection in a single qualification.

2395 — Periodic Inspection and Testing

The 2395 covered periodic inspection and testing of existing installations. Like the 2394, it has been merged into the combined 2391-52.

2391-50 and 2391-51 — Individual Awards

These were the first iteration of the 2391 scheme. The 2391-50 covered initial verification and the 2391-51 covered periodic inspection. Both have been superseded by the combined 2391-52.

2391-52 — Combined Award (current)

The current 2391-52 is the single, combined qualification covering both initial verification and periodic inspection and testing. This is the qualification you should take if your old testing credentials need updating.

Related Course

Inspection & Testing (2391)

Update your inspection and testing qualification with the current combined 2391-52

View Course

The wiring regulations have a remarkably long history. The very first edition was published in 1882 — just 4 pages long, titled "Rules and Regulations for the Prevention of Fire Risks Arising from Electric Lighting". Since then, the regulations have been updated through 18 editions. The ones most relevant to currently practising electricians are:

• ✓14th Edition (1966): widely used through the 1970s. Many experienced electricians trained under this edition.
• ✓15th Edition (1981): significant modernisation, began closely following international IEC 60364 standards
• ✓16th Edition (1991): became British Standard BS 7671 in 1992. Had multiple amendments through 2004.
• ✓17th Edition (2008): IEE became IET. Major restructuring with harmonised European numbering. Amendments 1-3 (2011-2015).
• ✓18th Edition (2018): City & Guilds 2382-18 — introduced requirements for AFDDs, enhanced SPD requirements, EV charging provisions
• ✓18th Edition Amendment 1 (2020): minor updates and corrections
• ✓18th Edition Amendment 2 (2022): City & Guilds 2382-22 — significant changes to Part 7 (special installations), new AFDD requirements, prosumer installations (new Part 8 Chapter 82)
• ✓18th Edition Amendment 3 (2024): further updates to requirements
• ✓18th Edition Amendment 4 (2026): BS 7671:2018+A4:2026, the "Orange Book", published 15 April 2026 — City & Guilds 2382-26 is the current exam

Whatever edition you qualified under, you need the current 18th Edition (2382-26) to demonstrate up-to-date knowledge. This is a 2-day course and is the single most important qualification to update. With Amendment 4 published in April 2026, keeping your regulations knowledge current is more important than ever.

Here is a practical decision framework based on what you currently hold:

If you hold 236, 2360, 2330, or 2365 (any generation of the diploma)

• ✓Do NOT retake the 2365 — your existing qualification counts
• ✓DO take the current 18th Edition (2382-26) if you do not already hold it
• ✓DO take the 2391-52 if you do not hold a current inspection and testing qualification
• ✓If you never held a testing qualification, the 2391-52 is essential for signing off electrical certificates

If you hold 2394 and/or 2395

• ✓These do not formally expire, but if they are more than 5 to 10 years old, employers and schemes expect an update
• ✓Take the 2391-52 to demonstrate current competence
• ✓The 2391-52 replaces both the 2394 and 2395 in one qualification

If you hold a 16th or 17th Edition qualification

• ✓You need the current 18th Edition (2382-26)
• ✓It is a 2-day course — short and manageable
• ✓Essential for BS 7671 compliance and for the 18th Edition-specific content in the 2391

If you have experience but no formal qualifications at all

• ✓The Experienced Worker Assessment (EWA) is your route
• ✓City & Guilds 2346-03 (standard) for domestic, commercial, and industrial scope
• ✓City & Guilds 2347-03 (domestic only) for those working exclusively in dwellings
• ✓You will also need the 18th Edition (2382) and 2391 as part of the EWA process

If you left the electrical trade and are now returning — perhaps after years in a different career — here is what has changed and what you need to know:

What has changed since you left

• ✓ECS cards are now effectively mandatory for site access — you need one to work on most commercial and industrial sites
• ✓RCBOs are now standard in modern consumer units, replacing the traditional split-load board with an RCD and MCBs
• ✓AFDDs (Arc Fault Detection Devices) are recommended for certain situations under the 18th Edition Amendment 2
• ✓SPDs (Surge Protection Devices) are now required in most new installations
• ✓EV charging points are increasingly common and require specific knowledge
• ✓Solar PV and battery storage are growing rapidly — new specialist qualifications have been launched
• ✓Digital certification is replacing paper-based electrical certificates
• ✓LED lighting has almost entirely replaced traditional incandescent and halogen lamps

What has NOT changed

• ✓The fundamentals of electrical science — Ohm's law, power calculations, circuit theory
• ✓Safe isolation procedures — still the same proven method
• ✓Cable selection principles — correction factors, grouping, thermal insulation
• ✓The importance of protective devices, earthing, and bonding
• ✓Ring final circuits and radial circuits — same basic topologies
• ✓The need for competence, care, and attention to detail

The ECS (Electrotechnical Certification Scheme) recognises older qualifications for card applications. Here is how to use your existing qualifications:

For the Installation Electrician Gold Card you need:

• ✓A recognised Level 3 qualification: 2360 Part 2, 2330 Level 3, 2365 Level 3, or the NVQ/EWA equivalent
• ✓Current 18th Edition: 2382-26 (or whichever is the current version at time of application)
• ✓AM2, AM2E, or AM2S assessment: the practical end-point assessment
• ✓ECS Health, Safety and Environmental Assessment: a short online test

If you are missing any of these:

• ✓Missing the AM2: book and pass the assessment at an NET licensed centre
• ✓Missing the 18th Edition: take the 2382-26 course (2 days)
• ✓Missing a Level 3 qualification: consider the NVQ Level 3 (2357) or EWA (2346)
• ✓Only have Level 2: you may be eligible for an Experienced Worker card while you work towards Level 3

Here is a practical step-by-step plan for getting back to full recognised status:

• ✓Step 1: Gather your old certificates and check exactly what you hold
• ✓Step 2: Take the 18th Edition (2382-26) if you do not already have it — this is the quickest win
• ✓Step 3: Take the 2391-52 if your testing qualification is outdated or you never held one
• ✓Step 4: If you need a Level 3 competence qualification, register for the NVQ (2357) or EWA (2346)
• ✓Step 5: Book your AM2 assessment once all qualifications are in place
• ✓Step 6: Apply for your ECS Gold Card with your complete qualification portfolio

For many returning electricians, Steps 1 to 3 can be completed within a few weeks. The NVQ or EWA takes longer (3 to 18 months depending on the route), but you can be working on site while completing it.

Related Course

Inspection & Testing (2391)

Combine the 18th Edition and 2391 to update your core qualifications efficiently

View Course