[FrankJ]

Your school will probably have a policy on lettering criteria. For us you have to be registered as a competitive team rather that a club. Then you will need performance criteria for what is required to earn a letter. That is really between the team & school to decide. Here is ours. It is a mix of participation of the various facets of our team. We run almost year round so you don't have to do this just during the build/competition season

"In order to letter this year, students must have:
• 250 hours of participation
• 70 hours of community outreach/service
• 1 business event
• 1 computer cleaning
• Safety Training
• 4 other training sessions
• Attendance at at least one regional competition
• Recommendation from the team coach
"