Amendments to the Vaccinations Code

The Rules are changing – please ensure your pony is compliant. From 1 January 2023 ALL ponies must have a 6 monthly booster vaccination. If your pony is starting its primary course of vaccinations in 2022 then they must follow the requirements set out in the table below.

You have until 1st January 2023 to get compliant. Get your pony’s booster vaccination every 6 months.


From 01 January 2022, the primary course and booster interval schedule for Equine Influenza vaccinations will be amended as follows:

 The European Horserace Scientific Liaison Committee (EHSLC) Board approved the above changes to vaccination protocols in October 2019, following consideration of advice from experts in equine infectious disease.

As communicated by the BHA in November 2019, it was initially proposed that the harmonisation changes come into effect from January 2021, subject to consultation with participants in each racing jurisdiction, which was subsequently delayed by the BHA due to the COVID-19 pandemic.

The harmonised EHSLC primary course and six-monthly booster intervals will now come into effect from 01 January 2022, with the BHA and Irish Horseracing Regulatory Board (IHRB) taking a coordinated approach to implementation.

Please note that the new primary course and booster intervals were implemented in both France and Germany on 05 May 2021, so horses entered to race in these jurisdictions must be compliant with the new requirements.

Primary course intervals

-Primary course intervals are only required for horses that have not yet been administered a primary course or are required to re-start a new primary course.

-Horses that have a compliant primary course and compliant subsequent boosters up to and including 31 December 2021 do not have to re-start the vaccination process. 

-Any horse starting a new primary course up to and including 31 December should continue with the current intervals, even if V2 and V3 are administered in 2022.

-Any horse starting a primary course from 01 January 2022 must comply with the new intervals.

 Six-monthly boosters 

Boosters should be administered no more than six months apart, according to calendar months rather than a fixed number of days. For example, a horse that is fully vaccinated on 01 January would require a booster on or before 01 July.

-We ask that trainers seek to move to the new vaccination schedule as soon as practicable. However, to help trainers implement the changes with minimal disruption to training, horses should be fully compliant with the new requirements by 01 January 2023.

-This means that before 01 January 2023, race entry will not be refused on the ground of having not yet commenced six-monthly boosters.

-As of 01 January 2023, an Entry for a Race, or a Confirmation of Entry in respect of Early Closers, will not be accepted for any horse unless it has a correct vaccination record.

To be clear: all horses must have a compliant vaccination record by 01 January 2023 (i.e.) all horses must have been administered a booster within six months of 01 January 2023.

*Horses which are due an annual booster between 01 January 2022 – 30 June 2022 will require a booster vaccination between 01 July 2022 – 31 December 2022 in order to be compliant by 01 January 2023.

*Horses which are due an annual booster between 01 July 2022 – 31 December 2022 will be compliant by 01 January 2023.

*NB horses which are vaccinated on 01 July 2022 will be due their next booster on or before 01 January 2023.

-As under the existing Rules, there is no minimum interval for boosters.

-Horses which do not have a compliant vaccination record as of 01 January 2023 will be required to re-start. Horses which have an interval of over six months between boosters will be required to re-start.