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We are committed to ensuring that our event provides and facilitates appropriate care for all delegates who may have special medical and healthcare needs, especially delegates who use drugs, or who are living with HIV, viral hepatitis or TB. More information about wellbeing services at the conference is available here.

Registration for HR23 is now open! Registrations can be completed online via the HR23 registration website page.

You can register to attend virtually here.

The conference programme timings will be as follows:

Sunday 16 April 2023
13.00-16.00: Registration
16.00-18.00: Opening Session

Monday 17 April & Tuesday 18 April
09.00-17.30: Conference Sessions

Wednesday 19 April 2023
09.00-15.30: Conference Sessions
16.00-18.00: Closing Session

Abstract submission closed on 4 October 2022. It is no longer possible to submit an abstract.

Scholarships are only granted to people whose abstracts are accepted. You can only submit a scholarship application as part of an abstract submission.

Abstract submission closed on 4 October 2022. It is no longer possible to submit an abstract.

More info

Simply log in here and edit the primary email address listed under your contact details. All future correspondence will be sent to the new address.

Pricing is tiered according to your country's income category (high or low income, according to the World Bank). We are also offering discounted Early Bird rates for delegates who register before 16 January 2023. All prices are in GBP.

You can find a full list of prices here.

We couldn't possibly host a conference in 2023 without an online element to enable people who can't or don't want to travel to attend. You can now register to attend virtually here.

All abstracts submitted will be put through a rigorous peer review process, first by an online review committee, and then by a programme committee that will convene to formulate the conference programme. Read more about the programme process here.

Yes, our partners in Melbourne are working hard to arrange site visits to local services. More details will be available in February 2023.

Find out about all sponsorship, exhibiting and advertising options, including prices, here.

Thank you for your interest in volunteering. Unfortunately, applications have now closed.

HR23 will be held at the Melbourne Convention and Exhibition Centre.

Wheelchair access: There are accessible toilets, ramps and lifts throughout our venue, including lift access from the car parks. If you’d like to hire a wheelchair from MCEC, call their Customer Service team on +61 3 9235 8000 or email them at

Vision impairment: Braille is provided on all room door signage and fixed directional signage throughout the venue. MCEC is guide dog friendly and welcomes any registered assistance dogs into all areas of the building.

Assisted hearing: Most meeting rooms within the Convention Centre are equipped with TTA Hearing Assisted telephones, and hearing assisted devices available to hire. To book, call the MCEC Customer Service team on +61 3 9235 8000 or email

You can read our COVID Safety Policy here.

We’ll be updating this FAQ as we add more information to the conference site, so the information you need may well appear here soon. In the meantime, please let us know what you’d like to ask, in case we haven’t thought of it, by emailing conference[at]hri[dot]global.

©2023 Harm Reduction International
Charity number – 1117375
Company number – 3223265
61 Mansell Street
Aldgate, London, E1 8AN
HR23 brought to you by:
Harm Reduction International
In partnership with:
Melbourne Convention BureauMelbourne AustraliaAIVLASHMHarm Reduction VictoriaINHSU