REDUCING UNNECESSARY ANTIMICROBIAL USE (AMU) ON LIVESTOCK FARMS HAS LONG BEEN ADVOCATED TO MITIGATE ANTIMICROBIAL RESISTANCE. VETERINARIANS PRESCRIBE AND DISPENSE ANTIMICROBIALS, BUT FARM WORKERS ARE NECESSARILY RESPONSIBLE FOR INITIATING ANTIMICROBIAL THERAPY, AND RELY ON OBSERVABLE CLINICAL SIGNS AND THE JUDGEMENT OF DISEASE SEVERITY TO MAKE TREATMENT DECISIONS. UNNECESSARY AMU MAY NEGATIVELY IMPACT PUBLIC HEALTH; HOWEVER, WITHHOLDING EFFECTIVE ANTIMICROBIAL THERAPY OR NEGLECTING TREATABLE INFECTIONS WOULD COMPROMISE ANIMAL HEALTH AND WELFARE. SOCIETY HAS PLACED SUBSTANTIAL RESPONSIBILITY ON THE SHOULDERS OF FARM WORKERS, WHO ARE TASKED WITH BOTH COMPLETE IDENTIFICATION OF ANIMALS REQUIRING THERAPY, AND THE PROTECTION OF PUBLIC HEALTH BY MINIMIZING UNNECESSARY AMU. THEREFORE, THERE IS A CRITICAL NEED TO DEVISE FARM WORKER DIRECTED ANTIMICROBIAL STEWARDSHIP EDUCATION TO REDUCE UNNECESSARY ANTIMICROBIAL USE. OUR OVERALL GOAL IS TO REDUCE THE CONSUMPTION OF ANTIMICROBIALS ON DAIRY FARMS WHILE MAINTAINING ANIMAL HEALTH AND PRODUCER PROFITABILITY. SUSTAINED EFFORTS ON ANTIMICROBIAL STEWARDSHIP WILL REQUIRE BEHAVIORAL CHANGES WITHIN DAIRY FARM PERSONNEL. THEREFORE, WE HYPOTHESIZE THAT ANTIMICROBIAL STEWARDSHIP (AMS) EDUCATION TARGETING FARM WORKERS WILL CHANGE PRODUCER ATTITUDES, REDUCE QUANTIFIED AMU, MAINTAIN PROFITABILITY, AND ALTER THE FARM ANTIMICROBIAL RESISTOME. FIRST, WE'LL USE A HIERARCHICAL SURVEY TO IDENTIFY INFLUENCERS AND BARRIERS TOWARDS IMPROVED AMS PRACTICES AT THE VETERINARIAN AND PRODUCER LEVELS. THE SURVEY WILL COLLECT FARM WORKER DISEASE SEVERITY TREATMENT THRESHOLDS, AND WE'LL PROVIDE A QUANTITATIVE ESTIMATE OF THE POTENTIAL FOR REDUCTIONS IN ANTIMICROBIALS USED FOR TREATMENT. LASTLY, WE'LL DEVELOP AND IMPLEMENT FARM WORKER ORIENTED ANTIMICROBIAL STEWARDSHIP EDUCATION MATERIALS, AND USE A LONGITUDINAL, FARM-LEVEL STUDY TO TEST THE IMPACT OF THE EDUCATIONAL INTERVENTION ON CHANGES IN WORKER ATTITUDES, QUANTIFIED AMU, AND THE FARM ANTIMICROBIAL RESISTOME. THE RESULTS OF THESE RESEARCH AIMS WILL BE CRITICAL FOR THE EVIDENCE-BASED CREATION OF COMPREHENSIVE STEWARDSHIP PROGRAMS ON DAIRY FARMS.