Is continuation training required every two years under EASA Part-145?

Is continuation training really required every two years?

Yes — three times over, and each from a different clause. Safety training including human factors repeats in each 2-year period under 145.A.35(d) and AMC4 145.A.30(e); fuel tank safety Phase 2 repeats in each 2-year period under Appendix IV to AMC5 145.A.30(e); and EWIS training repeats in a period not exceeding two years under AMC 20-22. There is no single “all training, every two years” rule — there are three cycles with three populations, and the same person can sit in one, two or all of them. This page gives the wording behind each cycle and how to run the dates; our guide to Part-145 training requirements maps all the duties these cycles belong to.

The two-year cycles at a glance

Figure	What it is
2-year period	Safety training including human factors continuation cycle — 145.A.35(d); AMC4 145.A.30(e)(c)
2-year period	Fuel tank safety Phase 2 continuation cycle — Appendix IV to AMC5 145.A.30(e)
Period not exceeding two years	EWIS continuation cycle for the organisation’s trained target groups — AMC 20-22, section 8(b)
24 months	The anchor point for every rolling window: next session due before the last-course date plus 24 months
3	Independent two-year dates a single person can owe at once — safety training, fuel tank safety and EWIS each run on their own clock

Where does the two-year safety training cycle come from?

Two places, covering two populations. For certifying staff and support staff it is a rule, not merely an acceptable means:

“The organisation shall ensure that all certifying staff and support staff receive sufficient recurrent training in each 2-year period to ensure that they have up-to-date knowledge of relevant technologies, organisation procedures and safety management, including human factor issues.” — 145.A.35(d)

For the wider population — the AMC4 145.A.30(e) list runs from nominated persons and supervisors through planners, compliance monitoring and safety management staff to stores and purchasing staff and ground equipment operators — the follow-on training under point (c) of the same AMC:

“should be of an appropriate duration in each 2-year period in relation to the relevant compliance monitoring audit findings and other internal/external sources of information available to the organisation on safety and human factors maintenance issues.” — AMC4 145.A.30(e)(c)

Who exactly is in that list, and what the session must contain beyond the GM1 145.A.30(e) syllabus — your own audit findings and what changed since last time — is covered in detail in how often human factors training is required.

Does fuel tank safety training repeat every two years?

For the Phase 2 population, yes:

“Recurrent training: The organisation should ensure that the recurrent training is required in each 2-year period. The syllabus of the training programme referred to in Chapter 3.9 of the maintenance organisation exposition (MOE) should include the additional syllabus for this recurrent training.” — Appendix IV to AMC5 145.A.30(e), Phase 2 – Detailed training

The boundary matters. Staff who need only Phase 1 awareness training carry no two-year fuel tank safety cycle under the appendix — their repeating obligation is the general safety training above, which is a different subject on a different record. The appendix also lets the continuation session be combined with Phase 2 training, in a classroom or at a distance, and asks for the programme to be updated when new instructions appear on the material, tools, documentation or directives.

Does EWIS training repeat every two years?

Yes, for whichever target groups your organisation trains:

“Refresher Training. Refresher training should be conducted in a period not exceeding two years. It could consist of a review of previously covered material plus any new material or revisions to publications. Refresher training will follow the EWIS Minimum Initial Training Programme - Appendix A or B for that particular target group.” — AMC 20-22, section 8(b)

Note that the continuation course keeps the appendix of the initial course: a Target Group 1 session still answers to Appendix A. Which staff are in scope at all is the organisation’s own needs assessment under AMC5 145.A.30(e) — walked through in who needs EWIS training.

The three cycles side by side

Training	Who repeats it	Where the cycle is written	Interval wording	Syllabus reference
Safety training including human factors	Certifying staff and support staff as a rule; the full AMC4(a) staff list as acceptable means	145.A.35(d); AMC4 145.A.30(e)(c)	“in each 2-year period”	GM1 145.A.30(e) topics plus the organisation’s own findings
Fuel tank safety	Phase 2 population only — those who plan, perform, supervise, inspect or certify maintenance on affected aeroplanes	Appendix IV to AMC5 145.A.30(e)	“in each 2-year period”	The additional syllabus in MOE chapter 3.9
EWIS	The target groups the organisation’s needs assessment selects	AMC 20-22, section 8(b)	“a period not exceeding two years”	Appendix A or B of AMC 20-22, per target group

One person can appear in all three rows at once: a certifying engineer on a fuel-tank-affected aeroplane who also inspects wiring owes all three dates, and each date moves only when its own session is completed.

“Every two years” or “in each 2-year period” — does the wording matter?

It does, because the regulation’s phrasing describes a rolling window, not a calendar anniversary. “In each 2-year period” — and AMC 20-22’s “a period not exceeding two years” — means the clock runs from the last course, and the next session completes before that date plus 24 months. A convention of “sometime in the second calendar year” can silently stretch an interval past two years and hand an auditor a finding. Anchor each cycle on its own last-course date, state the convention in the MOE, and track the three dates separately — the continuation due-date tool does the arithmetic for any of them.

The three cycles are independent. A mechanic on wiring work can owe a safety training date, a fuel tank safety date and an EWIS date that all differ; completing one session does not move the other two. The training record should make each subject and its next-due date visible on its own line — the record-keeping mechanics live under 145.A.55.

Can the sessions be shorter than the initial course?

Generally yes, and each clause says how. For safety training, AMC4(c) scales the duration to your audit findings and safety information rather than fixing hours, and AMC1 145.A.35(d) says outright that with few relevant findings the training could be limited to days rather than weeks — and for component shops, hours. For EWIS, section 8(b) allows a review of previously covered material plus what is new. For fuel tank safety, the continuation syllabus is the “additional syllabus” written into MOE chapter 3.9 rather than the full Phase 2 course. What none of them allow is an empty tick-box: the safety training session must fold in your organisation’s own findings and changes, which is why a bought course covers the syllabus element and the organisation still owns the rest.

The short version

Three trainings repeat on a two-year rhythm under EASA Part-145, each with its own clause, population and syllabus: safety training including human factors (145.A.35(d) and AMC4 145.A.30(e)), fuel tank safety for the Phase 2 population (Appendix IV to AMC5 145.A.30(e)), and EWIS for your trained target groups (AMC 20-22 §8). All three run rolling windows from the last course date. Track them separately, anchor them explicitly, and let no window pass 24 months. And if a date has already slipped, close the gap with the next session and record it as it happened — a training record that shows an honest overrun and a prompt correction reads far better in an audit than one that has been made to look unbroken.

Related courses. Part-145 Safety Training including Human Factors — Continuation covers the two-year safety training cycle; comparing the continuation packages shows what each bundled option contains; and the continuation due-date tool keeps the three windows honest.