Members are strongly encouraged to dress in professional umpiring jackets or sweaters when weather is a concern. On crews with three or more umpires, either all the base umpires should wear a jacket, or they all should not. If the weather changes the crew should adjust their clothing at the same time. The plate umpire is free dress in any manner which assists their personal comfort and performance. The plate umpire must also carry and use an indicator.
Indicators are optional for other umpires on the field.
It is recommended that umpires working diamonds with fixed bases carry a brush in their back pocket to assist with cleaning the bases when necessary. Umpires should refrain from wearing jewelry which would be visible or cause reflections. The plate umpire, in particular, should not be wearing a wrist watch, bracelets, or multiple rings. The base umpire should be carrying a stopwatch in their pocket and should note the start time of each game. Dressing for protection and safety is our highest concern.