The Stronach Group, which owns the historic Southern California track, announced the changes on Saturday.
The main dirt track is still being examined, a process that began Thursday. The racetrack remains indefinitely closed for racing.
Tim Ritvo, chief operating officer of The Stronach Group, says the new safety and welfare measures will take effect when racing resumes in the coming weeks.
The director of equine welfare will be responsible for conducting transparent investigations of injured horses.
Ritvo says officials are looking forward to the racetrack returning to normal “but it will be a new normal.”