When must new enrolments into DEF51612 stop?

New enrolments are not permitted from 17 August 2018 — one year from the date the replacement was included on the National Register (s 14(1)(a)(i) of the National VET Regulator (Compliance Standards for NVR RTOs and Fit and Proper Person Requirements) Instrument 2025 (F2025L00355, in force 1 July 2025)), or from a later date if ASQA has approved otherwise for your organisation.

Is there a deadline for learners already enrolled in DEF51612?

Learners already enrolled have no fixed deadline: they complete the product and are issued their AQF certification, or transfer to the replacement, in a timely manner (ASQA guidance, read live 25 August 2026).

DEF51612 Diploma of Preventive Health

Where the register points next

Each step below is one supersession training.gov.au publishes between two products. The label on the rail is the equivalence the register declares for that step — not our reading of it.

DEF51612Superseded — not equivalentDiploma of Preventive Health
not equivalent
DEF50617Deleted from the registerDiploma of Preventive Health

The register does not list a current endpoint for this chain: DEF50617 is the last product it points at, and DEF50617 is not marked current either.

What the register says changed

These are the mapping notes training.gov.au attaches to each supersession, quoted as the register writes them. They are the only public record of what actually changed between two versions.

PUA51609DEF51612equivalent14 March 2012
The register records this supersession but attaches no note on what changed.
DEF51612DEF50617not equivalent16 August 2017
Core units changed – BSB unit replaced with a DEF unit and DEF units updated

Is DEF51612 on your scope?

This page is the register's record of one product. What it cannot tell you is whether DEF51612 sits on your own scope today, or what else on that scope has moved without anyone noticing. Enter your RTO number and we read every product on your live scope against training.gov.au and tell you which ones are superseded and which replacements the register flags not equivalent.

Whether a supersession requires anything of you, and what, sits with you and your regulator. This page maps what the register records; it does not make that judgement. If the difference between an equivalent and a non-equivalent replacement is the question, we wrote it up in equivalent vs not equivalent.

What DEF51612 is made of

training.gov.au lists 22 units for DEF51612: 4 core and 18 elective. The register does not publish a completion rule in units for this product, so we do not state one. How many of the electives are required is in the packaging rules on training.gov.au.

Core units 4 listed

Code	Unit	In this product
BSBWOR502A	Ensure team effectiveness	not current
DEFPH011A	Perform environmental health planning	not current
DEFPH012A	Manage environmental health operations	not current
DEFPH013A	Manage a deployed capability	not current

Elective units 18 listed

Code	Unit	In this product
BSBAUD501B	Initiate a quality audit	not current
BSBAUD503B	Lead a quality audit	not current
BSBAUD504B	Report on a quality audit	not current
BSBOHS504B	Apply principles of OHS risk management	not current
BSBOHS505B	Manage hazards in the work environment	not current
BSBOHS506B	Monitor and facilitate the management of hazards associated with plant	not current
BSBOHS507B	Facilitate the application of principles of occupational health to control OHS risk	not current
BSBOHS508B	Participate in the investigation of incidents	not current
BSBSUS301A	Implement and monitor environmentally sustainable work practices	not current
BSBWRT401A	Write complex documents	not current
CPPPMT3029A	Plan and schedule pest management operations	not current
DEFPH014A	Investigate and control outbreak of disease	not current
FDFAU4001A	Assess compliance with food safety programs	not current
FDFAU4002A	Communicate and negotiate to conduct food safety audits	not current
FDFAU4003A	Conduct food safety audits	not current
FDFAU4004A	Identify, evaluate and control food safety hazards	not current
FDFFS3001A	Monitor the implementation of quality and food safety programs	not current
FDFTEC4003A	Control food contamination and spoilage	not current

Core and elective are the register's own flags on the unit grid of the release read here. "Not current" means training.gov.au no longer recommends that unit for use inside this product — it does not say anything about the product itself.

Source: this product on training.gov.au, Australia's national training register — or go straight to the units it requires. The rule itself is item 14 of F2025L00355, and ASQA publishes the extensions it has granted. Read on 28 August 2026 UTC. Every code, title, date, status and equivalence flag on this page is the register's; nothing here is estimated or inferred, and where the register publishes nothing we say so.

Every DEF training product on the register · Search all training products

Is DEF51612 still on your scope? Type your RTO code and get the free breakdown — every superseded product on your live scope, and whether the register flags each replacement equivalent.

Also watch that scope — email me when something on it is approaching the date new enrolments stop, or when the register changes what you have to do. Free forever, one click to stop.

No account, no card. We never ask for anything about your learners. Your address gets this one report — no list, no marketing — and the scope watch only if you tick the box, with one click to stop it.