What must a trainer do if they intend to make a change to a horse's blinkers?

A trainer must obtain approval from the official starter prior to entry when intending to make a change to a horse's blinkers. This process ensures that any modifications to the horse's equipment, which can significantly impact its performance and behavior during a race, are properly considered and authorized. The official starter is responsible for maintaining race integrity and safety, and they ensure that all horses conform to safety and regulatory standards during the race.

Changes to equipment like blinkers can influence how a horse responds to its environment, and it's essential for trainers to communicate such intentions upfront. Making these adjustments without prior approval could lead to confusion on race day and potentially disrupt the race's operation. This protocol protects not only the horses but also the riders and other participants involved in the racing event.