This document provides guidance for officials on making calls and setting up restarts following fouls in women's lacrosse. It discusses the advantage rule and when it should be used. It also introduces the BOOS and BOOSS mnemonics to help officials remember the key information to identify when making a call (Ball, Offense, Offender, Scoring) and setting up a restart (Ball, Offense, Others, Self Start). Specific guidance is provided on setting up restarts for minor fouls, major fouls, and fouls committed in different areas of the field like the marking area and goal circle.