What is the ruling if players other than the pitcher request to wear jackets over their uniforms while on base?

In baseball, the uniform regulations are designed to maintain a level of uniformity and fairness during the game. When it comes to players wearing jackets, there are specific rules that govern what can and cannot be worn while participating in a game, especially for those on the field or on base.

The ruling that it is illegal for players other than the pitcher to wear jackets over their uniforms while on base stems from the fact that uniforms should be clearly identifiable and consistent. Allowing players to wear jackets could lead to confusion regarding player identification and could potentially affect the integrity of the game. The pitcher is an exception primarily due to the nature of their role and the potential for varying weather conditions that can affect their performance.

Thus, any request for players other than the pitcher to wear jackets while on base does not comply with the regulations, making it an illegal action within the context of game rules. The game emphasizes uniform compliance, and this ruling ensures that all players adhere to those standards.