International Screening and Residue Limits and Asian Screening Limits

The NHA hereby advises it has adopted International Federation of Horseracing Authorities (IFHA) International Screening Limits (ISLs) to be applied in the control of therapeutic prohibited substances and also IFHA Residue Limits to control certain contaminants and environmental substances. In addition to this the NHA, as a signatory country of the Asian Racing Federation, has adopted several Asian Screening Limits (ASLs) for therapeutic prohibited substances. Details of these screening limits can be found in the section “International Screening Limits” in the “Laboratory” section of the website.

Dr S.S. de Kock


Laboratory Director


25 August 2016