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Every other part of this process is something you do once and forget. The application is the part with rules that follow you around — between operators, between years, and between attempts. Read this before you submit anything, not after the first rejection.

How vacancies actually open

There is no national application scheme. Each train operating company advertises its own trainee driver vacancies on its own careers site, and they behave in one of two ways.

• Windows. The common pattern. The advert goes up, a capped number of applications are taken, and it closes — sometimes the same day, occasionally within hours. Some operators open a window once or twice a year.
• Rolling recruitment. Less common, and usually freight or a depot with a chronic shortage. Applications are accepted continuously and worked through in batches.

Practical consequence: your preparation cannot start when the advert appears, because it will be gone. Set job alerts on every operator with a reachable depot, and on the Rail Delivery Group's Train Drivers Academy site, and have your employment history already written down. Every employer that recruits trainees is listed here, with the towns their drivers sign on at and a postcode search for what is within reach of you.

One application at a time — and the database behind it

This is the rule people break most often and understand least. The industry's guidance is explicit: complete one application and assessment process at a time, because the result of one affects all the others. When you apply, the national database of assessment results is checked, and your prospective employer is told what you have already sat and what you still need to sit.

So applying to six operators at once does not give you six chances. It gives you one set of results, visible to all of them, and it risks spending your limited attempts on operators you did not really want. Pick the operator you most want to work for, see it through to a conclusion, and only then start another.

The attempts rule, as it stands now

The standard behind the assessment battery, RIS-3751-TOM, moved to issue four on 7 December 2024 and changed how many goes candidates get.

Started on or after 7 Dec 2024

Three attempts, then no more, ever

Sat any part before then

Two attempts, then no more, ever

Attempt 2

Minimum one year after failed attempt 1

Attempt 3

Five years after failed attempt 1, and at least a year after attempt 2

Results stay valid

Five years, for sittings from 7 Dec 2024

Read the third row again. The third attempt is not one year after the second — it is gated on being five years past your first failure. In practice, a candidate who fails twice is looking at a multi-year wait before the last chance, and that last chance is genuinely the last: after it, the door closes on the mainline permanently.

The two-attempt rule still binds anyone who sat any part of the standardised process before 7 December 2024, even if the next sitting is years later. Passing part of it before that date does not help — the count follows the person, not the paper.

All of which is the argument for one thing only: do not spend the first attempt finding out what the tests are like. That is what practice at home is for, and it is the entire reason this site exists.

The form, and why most applications die on it

The application form is a sift, and it is doing three jobs: checking you are eligible, checking your history is accountable, and taking a first read on your judgement. Most rejections are administrative rather than damning.

• Employment history with no gaps. Dates that line up, and an explanation for anything missing. Travel, caring, illness and redundancy are all fine; silence is not.
• Distance to the depot. Stated honestly. It gets verified, and an optimistic answer surfaces later as a withdrawn offer.
• Competency answers about you. Safety, concentration, working alone, following procedure exactly when it is inconvenient. Write what you did, in the first person, within the word limit.
• Why this operator. Specific, short, and not a paragraph about loving trains since childhood. Depot, routes, the shift pattern you are signing up for.

The online stage before the assessment centre

Most operators now attach unsupervised online tests to the application. They vary, but the usual suspects are a situational judgement exercise, a visual search or concentration task, and sometimes numerical or mechanical reasoning. Some of these sit inside the standardised process and some sit outside it — which matters, because the ones inside it count against your attempts.

Treat the at-home stage exactly like the centre: one sitting, no phone, big screen, no interruptions, and not at eleven at night after a shift. People throw these away casually and are then confused by a rejection they cannot appeal.

What you are entitled to before the day

• Practice materials. If you are invited to an assessment, the industry's guidance says you will be given the approved practice materials at least a week beforehand. If they have not arrived, chase the operator. This is the single best-matched material you will ever see, and a startling number of candidates never open it.
• Adjustments. If you have a disability or condition, including neurodiversity, you can ask for reasonable adjustments and the assessors are trained to discuss them confidentially. Ask as early as possible — evidence of the condition will be required, and a late request usually means a rescheduled assessment rather than a supported one.
• Feedback, and an appeal. Both go through the operator you applied to, not through the assessment provider. Ask for feedback even after a pass; it tells you which of your scores was marginal.

On the day

Dress

Smart but comfortable — smart casual is the stated expectation

Bring

Photo ID (passport or driving licence) and your National Insurance number

Also worth bringing

Glasses or lenses, water, and something to eat

If you cannot attend

Tell the operator as early as you can, rather than not turning up

The assessment day, start to finish covers the running order and the parts nobody warns you about.

One thing to plan for: the day usually includes the MMI, the structured multi-modal interview, but not the DMI — the drivers' manager interview, which is normally a separate trip to the depot weeks later and, at most operators, the last stage before the medical. Two different interviews, two different kinds of preparation, and both are covered here.

Who sets the pass mark

Not the assessment provider, and not the standard. RIS-3751-TOM deliberately sets no pass marks: RSSB recommends them, and each train company decides which cut-offs it uses. Operators may use higher ones, and may add their own tests outside the standard entirely.

Two things follow. Anyone quoting you a definite pass mark is guessing. And a score that failed at one operator might not have failed at another — which is a reason to choose your operator deliberately, and a reason not to read too much into a near miss.

Mistakes that cost people the process

• Making the first attempt a reconnaissance trip. There is no such thing. Every sitting counts, and the clock between attempts is measured in years.
• Running parallel applications. One result, shared, and attempts burnt for nothing.
• Binning the operator's own practice pack. It is free, it is the closest match to what you will sit, and it arrives a week early for a reason.
• Requesting adjustments on the morning. Without notice, support is not guaranteed and you may be sent home to rebook.
• Sitting the online tests on a phone, on a break. The visual search tasks in particular are much harder on a small screen, and the score is kept.
• Assuming a rejection at form stage was about you. Capped windows close on numbers. Reapply at the next window unless you were told otherwise.