National Producer Number definition, categories, type and other relevant information provided by All Acronyms. NPN stands for National Producer Number Search for acronyms, abbreviations,
Height Considerations. There are no height limits for jockeys. However, jockeys tend to be shorter than normal to meet the weight guidelines. The average height for a jockey is between 4 feet 10 inches and 5 feet 6 inches.eight Limits. Depending on specific race and track guidelines, a jockey must weigh between 108 and 118 pounds without clothing and equipment, which can add a significant number of pounds.
Weight Limits. Depending on specific race and track guidelines, a jockey must weigh between 108 and 118 pounds without clothing and equipment, which can add a significant number of pounds.ockeys need a riding license from the state in which they race. The minimum age to be licensed is 16 years old. As a general rule, a jockey is prohibited from owning the horse being raced. The jockey owns all the equipment used in the job, including saddles, bridles, crops, clothing and helmets.