DGSA Course Cost vs Self-Study: £405 in Exam Fees, Then What You Choose

For anyone taking the UK DGSA exams, the only fixed cost is the exam fee: £135 a paper, so £405 for Core, All Classes and one mode if each is passed first time. A course is optional. GOV.UK says there is no legal requirement to take one, that courses typically run 2 to 5 days and that they do not need DfT approval. The rules themselves (ADR, CDG2009, the derogations, the emergency action code list) are free to download.

GOV.UK booking page and guidance note 19; UNECE; legislation.gov.uk. Read 28 October 2026.

Because references earn marks, finding a paragraph quickly matters as much as knowing the rule (our view). Budget for printing and tabbing, or for a bound copy if you prefer one.

ADR 2025 comes in two volumes. Volume I holds Parts 1 to 3, including Chapter 3.2 and Table A, where you look up a substance’s entry and the requirements that follow from it; Volume II holds Parts 4 to 9: packing and tank provisions (Part 4), consignment procedures such as marking, labelling, placarding and documents (Part 5), construction and testing of packagings and tanks (Part 6), carriage, loading, unloading and handling (Part 7), vehicle crews, equipment, operation and documentation (Part 8), and the construction and approval of vehicles (Part 9). Print both, with CDG2009, the derogations and the EAC list, and tab them before your first timed paper, not the week of the exam: practising with the copies you will take in is part of the preparation (our suggestion).

The DfT review (October 2025) asked DGSAs about their training. Of the 243 who planned to renew, 96 % had done DGSA training before, and 74 % said they would train again when renewing. 89 % rated their training excellent or good. Some respondents also said courses can focus “on teaching candidates to pass exams”, and some reported that their training did not prepare them for the exam.

The syllabus splits the Core, All Classes and Road topics into three groups each. A plan that works through the groups in order, then sits timed written papers, fits around a job (our suggestion):

Arrange feedback on your written answers as part of the plan (our suggestion): a marked practice paper, or a colleague who is already a DGSA. Without it, the three sample papers come with no answers to check against.

A business does not have to qualify one of its own staff. ADR 1.8.3.4 allows the adviser to be “a person not directly employed by that undertaking”, provided that person can perform the duties. In the DfT review’s survey, 30 % of the 268 DGSAs worked only as external contractors and a further 6 % were both directly employed and contractors. Whether paying a contractor costs less than £405 in fees plus the time to qualify and renew depends on how much dangerous goods work the business has; the sources cited here give no cost comparison.

Whichever route, the employer’s own duties stay the same. GOV.UK: a business that transports dangerous goods must have a DGSA (unless an exemption applies), keep staff training records for at least 6 years from the date of training, make them available to the employee or the DfT on request, and keep a leaver’s records for a further 2 years. ADR 1.3.3 requires the records and leaves the period to the competent authority.

In the DfT review, of the 243 DGSAs who planned to renew, 74 % said they would complete training again when renewing and 26 % would not. Renewal means passing Core, All Classes and your mode again within the final year of your certificate, on the current edition of the texts (ADR for Road, RID for Rail, ADN for Inland Waterways), so a renewer who qualified on an older edition has the changes to learn; ADR is revised every two years. A refresher course or self-study can help, provided it covers the changes since your last edition; the exam fees are £405 either way.

A failed paper normally costs another £135 and means a later sitting. Results can take up to 8 weeks, so check the next application deadline as soon as you hear. On the pass rates (2019 to 2023: Core 79 %, All Classes 66 %, Road 60 %; March 2025: 78 %, 62.9 % and 51.5 %), a substantial share of attempts at each paper do not pass; the rates are per paper, so the chance of passing all three at once is not published. If your employer needs you qualified by a date, allow for one resit (our suggestion).

If you study on your own, the missing piece is feedback on written answers. The DGSA practice papers are 9 timed papers (3 Core, 3 All Classes, 3 Road) where you write your answers and each one is marked point by point, with the ADR, CDG2009, emergency action code list or derogation reference for every point you missed. One Core question is free to try.