Appendix « U.S. Model Rocket Sporting Code US Model Rocket Sporting Code Rules Revision Process Form About the Sporting Code List of Changes NAR Contest Board Directory Model Rocket Safety Code Introduction Competition Altitude Events Payload Events Duration Events Craftsmanship Events Miscellaneous Events Provisional Events Appendix Glossary Weighting Factor Points and Charts Abbreviations Returns / Scoring Guide Altitude Data Reduction Notice of Rulemaking Procedures Altimeters Approved for Contest Use Team Registration Form