Vets and HGP responsibilities

If you are a veterinarian implanting hormonal growth promotants (HGPs) you have responsibilities under the HGP Regulated Control Scheme (RCS).

Veterinarians' responsibilities

In New Zealand, the use of HGPs implanted into bovine animals is strictly controlled through the HGP Regulated Control Scheme (RCS). Veterinarians need to be familiar with their full legal obligations under the RCS.

Animal Products (Regulated Control Scheme – Hormonal Growth Promotants) Notice [PDF, 419 KB]

HGPs are restricted veterinary medicines that must be administered by a veterinarian or under the supervision of a veterinarian. Veterinarians' responsibilities are to ensure that:

  • HGPs are administered by persons who are competent to do so
  • technicians who implant HGPs are employed in the same practice as the veterinarian
  • the animal identification and treatment details of every treated animal is recorded in MPI's HGP database
  • records are kept of the owner, date of treatment, product used, and the person who administered the treatment
  • a scanned record is kept of the NAIT devices of implanted animals
  • all records are kept for at least 4 years from the date of HGP implantation.

Getting access to the HGP database

To get access to the HGP database, you need to apply for a login and password by emailing

Find out more

General requirements under the HGP Regulated Control Scheme

Farmers' responsibilities using HGPs

The NAIT online system

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