To all licensed persons and other stakeholders, 

This notice addresses the current availability of the AHS vaccines as well as the eligibility of horses to compete in 2025. 

Due to the persistent AHS vaccination shortage, the NHA has extended the window period for horses’ resident in the AHS infected zone to 31 December 2024. Horses resident in the AHS controlled area may only be vaccinated between 1 June and 31 October.  No horse resident in the AHS surveillance and free zones shall be vaccinated against AHS without official permission from the State Vet: Boland. 


To All Trainers

With immediate effect from 28 June 2024, the following SPECIMEN analysis and collection procedure for TCO2 measurement will apply on race day:

  1. TRAINERS shall be notified of the HORSES selected for pre-race TCO2 sampling and ANALYSIS via the Notice of Pre-Race Blood Collection.
  2. A blood SPECIMEN shall be collected from each selected HORSE approximately 60 minutes prior to RACE time. Immediate ANALYSIS shall be performed using an NHA approved handheld blood gas analyser.
  3. Where such ANALYSIS shows that a HORSE has a TCO2 concentration of more than 35 mmol/L, a second blood SPECIMEN shall be collected, a minimum of 10 minutes later.
  4. If the TCO2 concentration of the second blood SPECIMEN is more than 37 mmol/L, the STEWARDS shall withdraw the HORSE from the RACE and detain the HORSE for additional SPECIMEN collection.
  5. Under these circumstances, a third blood SPECIMEN shall be collected a minimum of 30 minutes later. If the TCO2 concentration of this SPECIMEN is less than or equal to the international threshold of 36 mmol/L, no penalty shall be imposed on the TRAINER.
  6. The STEWARDS may, at their discretion, instruct a SPECIMEN COLLECTOR to subsequently collect SPECIMENS from the HORSE for analytical testing of all PROHIBITED SUBSTANCES.

As per Rule 75.3.2, if the taking of a SPECIMEN from that HORSE is refused by the TRAINER and/or the PERSON in control of such HORSE, then that HORSE shall be withdrawn from the RACE in question.


To all licensed persons and other stakeholders,

This notice serves as a reminder of the AHS vaccination window period which commences on Saturday, 1 June 2024.

The Rules of the NHA require that all horses, except those residents in the AHS surveillance and free zones, be vaccinated against African Horse Sickness by a Veterinarian, using a registered, non-expired, polyvalent horse sickness vaccine according to the manufacturers’ recommendations, every year between 1 June and 31 October.


To all trainers and equine veterinarians 

The NHA has adopted new Rules and amended others, relating to IFHA Prohibited Practices in line with its commitment to international harmonisation of the rules of racing and in the best interests of horse welfare.