You're saying that experts will provide a response later. That's fine.
In your bill, you specify the need for written confirmation from the exporter that the horse isn't being exported for slaughter. Right now, your bill bans only the export of horses for slaughter. Many people consider horses noble and highly valuable animals. It's also necessary to consider the far‑reaching impact of bills.
Your bill specifies the need for written confirmation from the exporter that a horse is being transported for purposes other than slaughter. How will this be done? Have you considered the administrative burden? Have you thought about the airline that must prove all this? What happens to the horse once it reaches its destination? Does this mean that the horse's owner can never slaughter the animal when it reaches the end of its life? How will you monitor this, given the potential length of time involved?