• Look the part
• Don't talk about other officials
• Don't schedule watch
• Don't tell me how good you are - show me how good you are
• Don't cancel or turn back games
• Go to officiating camps
• Know the rules
• Be fit
• Never be late
• Be respectful
• Check your ego at the door
• Listen to evaluators - don't make excuses
• Understand your own limitations

(Source:  SBOA Commissioner and OSAA)