TREC is heading for its biggest change since being introduced to the UK in 1998.

The British Horse Society (BHS) has announced it will not support the discipline after this season.

A review found that TREC, a three-phase competitive sport, required the BHS to make “a significant investment” each year, as its governing body.

Lynn Petersen, from BHS, said: “We have decided to focus all our resources on our charitable aims of education, access, safety and welfare.”

The BHS board voted TREC unanimously as “an unsustainable and inappropriate use of funds”.

Only 580 riders competed affiliated last year, but the unaffiliated sector seems to be thriving.

Several competitors, organisers and judges formed TREC GB last year still in its formative months, its vision is “to run the sport via a democratically elected committee drawn from the TREC clubs”. A formal handover will be discussed with the BHS this month.