16 years and upwards depending on the State/Country. Step 1 Get a referral to work on the back side of a racetrack. You need a recommendation from either a trainer or an owner to get a job on the racetrack. Step 2
Begin your career "walking hots." This means you'll cool down hot horses that have just run or exercised. Walking hots is done from the ground.
Step 3
Move up to grooming. Once you've established yourself on the racetrack, you can become a groom. Grooms are typically responsible for grooming three to four horses. The groom is responsible for making sure the horse is brushed, cleaned and ready to ride.
Step 4
Pony racehorses: While seated on one horse, you hold on to the lead rope of the racehorse and trail him to the side. This gives the racehorse exercise and gets him used to being ponied, which is how the racehorse enters the racecourse.
Step5
Exercise racehorses. You finally get to ride the racehorse, but only for exercise. You'll be required to gallop the horse on the track for practice.
Step6
Compete in schooling races. These are practice races designed to teach new jockeys how to come out of the gate and race. Successful completion will get you an exercise license.
Step 7
Realize that track stewards will judge you on your ability to ride while you compete in smaller races designed for exercise jockeys. The track stewards will critique your ability to handle the horse and to maintain safety among a group of horses on the racecourse.
Step 8
Get your jockey's license from the racetrack. This license is valid at all racetracks.
Taken from the E-How,
Joan Cowin
Weight is 115 max, no height limit, and 16 is the minimum age.
The minimum age of a US senator is 30 ears old.
35 is the minimum age for the US president.
35 is the minimum age for the US president.
The minimum age as set by the Constitution is 35.
In fact this is a generalized question. However the minimum voting age of the US citizen is 18 years.
25
Thirty
in the US there is no minimum age - you might be confused with adoption law minimum desired age of notice.
It could depend on the breed registry. As far as I know you do not have to be 18 to register a horse. If you are speaking of the horse's age, it depends on the registry as well. For example, Fresians cannot be registered until they are 2 1/2 years of age. Others are earlier.
Members of the US House of Representatives must be at least 25 years of age.
The minimum age for voter registration is 18.