Australia is a study in contrasts. There is no legal recreational cannabis market, with one small exception: Canberra, where personal possession is decriminalized but there is still nowhere legal to buy it. Yet Australia has become one of the largest medical cannabis markets in the world, with more than a million people having accessed it, most through online clinics. So who makes sure all that product is safe?
The answer is a national regulator and a single quality standard that every product has to meet.
The short version: in Australia, medical cannabis is prescribed by a doctor, dispensed by a pharmacy, and, even though most products are technically "unapproved," must pass a mandatory national testing standard for potency and contaminants before it can be supplied.
A medical market, mostly "unapproved"
Medical cannabis has been legal across Australia since 2016, overseen by the Therapeutic Goods Administration (TGA), the national medicines regulator. Here is the quirk: only a couple of cannabis medicines are formally approved and listed on the national register. Almost everything else is an "unapproved therapeutic good," reached through two special pathways where a doctor gets permission to prescribe it for a patient.
THC products are treated as controlled drugs, and CBD is prescription-only. Either way, a pharmacy dispenses it against a doctor's authorization.
Who checks that it is safe
"Unapproved" does not mean untested. The safety chain runs like this:
A national license from the Office of Drug Control is required to cultivate or manufacture cannabis at all.
Manufacturers must hold a Good Manufacturing Practice license, the same quality benchmark used for other medicines.
Every batch must meet a mandatory national standard (see below) before it can be supplied.
A pharmacy dispenses it only on a valid prescription or approval.
The standard that makes it "safe": TGO 93
Australia's key safety rule is a document called TGO 93, the Standard for Medicinal Cannabis. It is mandatory, it borrows testing methods from the European Pharmacopoeia, and it requires every product to be tested for:
Cannabinoid content and consistency: the actual THC and CBD must closely match the label.
Pesticides and heavy metals (arsenic, cadmium, lead, mercury).
Microbial contamination and aflatoxins (mold toxins).
Residual solvents in extracts.
The regulator runs audits and can penalize products that fail. So even an "unapproved" Australian cannabis product carries pharmacopoeia-grade testing behind it.
The twist: a telehealth boom that got reined in
Australia's medical market grew so fast, largely through online clinics that prescribe after a quick questionnaire, that regulators stepped in. In 2025, after reports of some doctors writing thousands of scripts in a matter of months, the national health-practitioner regulator issued tougher prescribing guidance and took action against dozens of practitioners, making clear that a patient simply asking for cannabis is not enough to justify a prescription. It is a reminder that the safety system covers not just the product, but who is allowed to prescribe it.
What it means for you
If you use medical cannabis in Australia, the safety net is real: a licensed maker, a mandatory testing standard, and a pharmacy that only dispenses on a proper prescription. There is no legal recreational market, so anything bought outside that system has not been through any of it.
Curious how this works where cannabis is sold recreationally? See our walkthrough of who signs off on a US cannabis lab report at weed-central.com/learn/coa.
This article is general information, not legal or medical advice. Australia's medical cannabis rules are being actively reviewed and tightened; verify the current requirements before relying on any detail.