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Adobe PDF file 2021 HMBL Rules *- - The Harford Mens Baseball League (HMBL) will play under Major League Baseballs Official Baseball Rules (OBR) along with the local modifications listed below. The Official Baseball Rules (OBR) can be found at: http://mlb.mlb.com/NASApp/mlb/mlb/official_info/official_rules/foreword.jsp UMPIRES WILL INTERPRET AND ENFORCE ALL RULES. DECISION OF UMPIRING IS FINAL.

Adobe PDF file Official MLB Rules *- These are the official rules of the MLB as of 2019. They are supplemented by the rules of the HMBL.

Adobe PDF file Updated Covid Guidance *- Updated BARC COVID Risk Reduction Principles. As of 24 March 2021

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