Authorized and qualified workers: how to train and accredit staff exposed to electrical risk in Spain

In Spain there is no "authorized worker" licence: the authorization is granted by the employer, in writing or not depending on the case, and the employer must be able to show the verified capability it rests on.

A maintenance technician finishes a 20-hour course on electrical risk and returns to the plant with a certificate. The next day, they are asked to take a measurement on a low-voltage panel. Are they authorized? Many people would say yes, because they have the course. The correct answer is that it depends on what the company has decided and documented.

This is one of the most common misunderstandings we see in industrial, energy and maintenance companies. The course is part of the path; the authorization is an employer decision that has to be justified for each type of work.

In this article we explain what sets each role apart under Spanish regulations, which work each one can do, and how to organize training so the authorization holds up under inspection.

What separates an authorized worker from a qualified worker

The regulation that governs this in Spain is Royal Decree 614/2001, on protecting workers' health and safety against electrical risk. Its Annex I defines four roles worth having clear:¹

Non-authorized worker: performs de-energized work and has only received the basic prevention training required by article 19 of Spain's Occupational Risk Prevention Act.²
Authorized worker: someone the employer has authorized to carry out certain work involving electrical risk, based on their ability to do it correctly following the procedures set out in the decree.¹
Qualified worker: an authorized worker who also has specialized knowledge of electrical installations, through accredited vocational or university training or certified experience of two years or more.¹
Work supervisor (jefe de trabajo): the person the employer designates to take effective responsibility for the work.¹

The nuance most often missed is in the definition of the authorized worker. Having received training is not enough: the company must have verified that the person can do the work according to the procedure. A certificate proves the course was delivered. An authorization proves someone verified the capability.

Which work each role can do under Royal Decree 614/2001

The decree's annexes assign each type of work a minimum role, and the level rises when moving from low to high voltage. This is the summary matrix:

Type of work	Low voltage	High voltage	Reference
Isolating and restoring supply (de-energized work)	Authorized worker	Qualified worker	Annex II
Live work	Qualified worker	Qualified worker with written authorization	Annex III
Switching, measurements, tests and checks	Authorized worker	Qualified worker	Annex IV
Work near live parts: assessing feasibility and preparing	Authorized worker	Qualified worker	Annex V
Work near live parts: carrying it out	Authorized worker or under their supervision	Authorized worker or under their supervision	Annex V
Locations with fire or explosion risk	Authorized worker

Source: our own summary of the consolidated text of Royal Decree 614/2001.¹

There is one well-known exception: elementary operations on low voltage, such as connecting and disconnecting equipment designed for use by the general public, can be done live without this requirement.¹ Everything else requires a specific role.

Written authorization for high voltage and when it must be renewed

The most demanding case is live work on high voltage. Annex III sets three rules that directly affect training:¹

Written authorization: the qualified worker must be authorized in writing for that specific type of work, after the company verifies their ability to perform it according to the procedure, which must also be defined in writing.
Mandatory renewal: the authorization must be renewed when the procedure changes significantly or when the person has gone more than a year without doing that type of work.
Withdrawal: the authorization is withdrawn if the worker breaches safety rules or if health surveillance shows the job is no longer compatible.

The practical consequence is clear: every significant change to a high-voltage procedure opens a window for retraining and reauthorization. If training material takes months to update, the company is left with two bad options: halt work, or authorize people on content that no longer matches the current procedure.

How to organize training so the authorization holds up

The decree does not set a syllabus or a number of hours for these roles; article 5 requires "adequate" training and information on electrical risk.¹ That flexibility forces the company to justify its own decisions. In the plans that best withstand review, we always see these four steps.

Step 1: build an authorization matrix per person

Before talking about courses, the company needs a table that maps each person to the types of work and voltage levels they will handle. That matrix defines the training each person needs and avoids the common mistake of giving the same course to the entire maintenance team.

Step 2: train on your own procedure, not just the regulation

The definition of an authorized worker refers to the ability to do the work "according to the established procedures". A generic course explains the regulation; the authorization requires knowing the procedure for the specific installation: how the five golden rules are applied at that site, which equipment is used and who signs off each step.

Step 3: verify capability before authorizing

Verification is the most frequently skipped part and the one that gives the authorization its meaning. It can be a practical assessment supervised by a qualified worker or the work supervisor, a questionnaire on the procedure, or both. What matters is keeping a record of what was checked, who checked it and when. We explain how to approach this kind of assessment in our guide to assessing real competence after training.

Step 4: link training to the procedure version

If the procedure changes, the training and the authorization have to change with it. That is why each training module should state which version of the procedure it corresponds to. When training is produced from the procedure itself, as training production tools like Vidext do, updating the affected part means reviewing that module, approving the change and retraining only the group that needs it, with no new production order.

What documentation to have ready for an inspection

After an accident or during a visit, the question is rarely whether an electrical risk course exists, but whether the person doing the work held the role the work required. To answer convincingly, the company should be able to show:

The current authorization matrix, dated
Each person's training records, linked to the procedure version
Evidence of the capability check carried out before authorization
Written high-voltage authorizations and the date of their last renewal
Proof of experience or qualifications for qualified workers

To place this training within the wider set of prevention obligations for your sector, our guide to occupational safety training hours by sector in Spain covers who sets the minimums and what gets reviewed.

Conclusion: authorization is a company decision, not a certificate

Royal Decree 614/2001 gives companies wide latitude in how they train their staff, and that is precisely why it requires them to justify every authorization. An external course helps, but it authorizes no one. What supports the decision is the combination of training on your own procedure, a capability check and an up-to-date record.

The companies that manage this risk best treat the authorization matrix as a living document: it changes when someone joins, when a procedure changes and when someone goes more than a year without doing a task. If your training can keep up with that pace, the authorization holds up on its own.

Frequently asked questions

Is there an official authorized worker licence in Spain?

No. Royal Decree 614/2001 defines the authorized worker as an authorization granted by the employer based on the person's verified capability.¹ Training courses are useful to accredit knowledge, but they do not replace that company decision.

How many training hours does an authorized worker need?

The decree does not set a number of hours. Article 5 requires training appropriate to the risk, and the non-binding technical guide from INSST, Spain's national occupational safety institute, gives guidance on how to apply the decree.³ Collective agreements or some clients' tender specifications may set their own minimums, so they are worth checking.

What does a worker need to be qualified?

To be an authorized worker and have specialized knowledge of electrical installations, accredited through vocational or university training or at least two years of certified experience.¹

How often must the authorization be renewed?

The decree only sets renewal explicitly for live work on high voltage: when the procedure changes significantly or when the person has gone more than a year without doing that type of work.¹ For everything else, it is good practice to review the matrix whenever a procedure or a role changes.

Can a non-authorized worker enter an area with electrical risk?

They can perform de-energized work with the basic training required by article 19 of the Occupational Risk Prevention Act.² For work near live parts, only under the supervision of an authorized worker, unless the work is done outside the proximity zone.¹