The Joint Measurement Board was established in 1934 to run a national scheme for the measurement of the height of horses and ponies for the purpose of description and classification of horses and ponies for competition.

Sarah Gent is an official measurer for the scheme and therefore licensed to provide height certificates.

Key features of the scheme

  • From the 1st January 2024 only animals 8 years of age or over will be issued with full certificates. If your 7 year old has a Full Certificate obtained in 2023, it has a Full certificate and will not need representing for measurement in 2024.
  • All horses and ponies must have at least one Annual Certificate before they can have a Full Certificate.
  • Annual certificates are issued to animals aged 4, 5, 6 and 7 years old or to any animal over 8 years old which is being measured for the first time.
  • From 2024 all annual measurements shall expire 364 days after issue.
  • Measurements must be carried out by Official Measurers.
  • Measurements are carried out on registered measuring pads with shoes removed. We have an official pad at The Liphook Equine Hospital.
  • Consecutive measurements must be done by different Measurers.
  • The Measurer for a Full Certificate must be from a different veterinary practice from the Measurer for the last Annual Certificate.
  • There is a fee of £100 (2024) to cover the measurement procedure and issuing of a certificate, which has be paid at the time by cheque made payable to JMB Ltd.
  • The animal’s passport must be available at the time of measurement, so please ensure it accompanies the animal on the day. Also all animals being measured must have a microchip inserted. This can be done at the time of measuring if required.
  • A re-measurement procedure can be used to settle doubts about accuracy.
  • For further information about the Joint Measurement Board and its panel of Official Measurers, please visit the JMB Ltd website.

What our clients say


My experience of each and every vet and member of staff, the attention to detail and the first class level of care to my horses, my husband and me and my clients has always been fantastic

— Mrs. Yvonne Nailor, Dressage rider/ trainer and livery yard owner