The American School District Panel (ASDP) is the newest addition to the RAND Corporation's American Educator Panels (AEP), which are designed to survey educators several times each year. RAND recruits ASDP members using probabilistic sampling methods, which allow researchers to weight survey results to generalize to the national population of school districts. This report provides technical information about the November 2021 ASDP survey of district leaders. The authors describe respondent districts' characteristics and the methods used for creating survey weights to produce nationally representative estimates.