?COOPERATIVE EXTENSION SERVICES (CES) IS A LONG-STANDING INSTITUTION THAT BRIDGES SCIENTIFIC KNOWLEDGE AND COMMUNITIES. CES IN LOUISIANA DELIVERS HEALTHY EATING AND ACTIVE LIVING POLICY, SYSTEMS, AND ENVIRONMENTAL (PSE) CHANGE STRATEGIES TO MAKE IT EASIER FOR RURAL POPULATIONS HAVE HEALTHY DIETS AND ACTIVE LIVES BY REMOVING BARRIERS. HOWEVER, TAILORED IMPLEMENTATION STRATEGIES - OR STRATEGIES REQUIRED TO HELP CES AGENTS TO ACHIEVE THIS GOAL -ARE NEEDED TO OVERCOME REPORTED CHALLENGES TO DELIVERING PSE CHANGES VERSUS TRADITIONAL DIRECT EDUCATION. THE PURPOSE OF THIS INTEGRATED RESEARCH-EXTENSION PROJECT IS TO USE A QUALITATIVE AND STAKEHOLDER-ENGAGED CASE STUDY APPROACH TO IDENTIFY AND TAILOR IMPLEMENTATION STRATEGIES TO ADEQUATELY SUPPORT THE SCALING OF HEALTHY EATING AND ACTIVE LIVING PSE CHANGES TO A GREATER NUMBER OF RURAL LOUISIANA PARISHES. IN YEAR 1, FOCUS GROUP DISCUSSIONS (FGD) WITH CES AGENTS BASED ON THE CONSOLIDATED FRAMEWORK FOR IMPLEMENTATION RESEARCH WILL BE CONDUCTED TOUNDERSTAND MULTI-LEVEL FACTORS THAT MIGHT FACILITATE OR PREVENT THE SCALING OF HEALTHY EATING AND ACTIVE LIVING PSE CHANGE STRATEGIES. CODING AND THEMATIC ANALYSIS RESULTS (MULTI-RESEARCHER AGREEMENT) WILL BE MATCHED WITH EXPERT RECOMMENDATIONS FOR IMPLEMENTING CHANGE IMPLEMENTATION STRATEGIES THAT COULD SUPPORT SCALING EFFORTS BY OVERCOMING STATED BARRIERS. IN YEAR 2, FGD WITH CES AGENTS, SPECIALISTS, AND ADMINISTRATORS BASED ON IMPLEMENTATION OUTCOMES (ACCEPTABILITY, ADOPTION, APPROPRIATENESS, FEASIBILITY, COST, FIDELITY, PRESCRIPTION, AND SUSTAINABILITY) WILL BE CONDUCTED TO UNDERSTAND HOW SELECTED IMPLEMENTATION STRATEGIES WILL NEED TO BE ADAPTED OR TAILORED TO FIT LOCAL, REGIONAL, AND STATE CES NEEDS TO SUPPORT SCALING OF HEALTHY EATING AND ACTIVE LIVING PSE CHANGE STRATEGIES TO MORE RURAL PARISHES IN LOUISIANA. CODING AND THEMATIC ANALYSIS RESULTS (MULTI-RESEARCHER AGREEMENT) WILL INFORM FINAL RECOMMENDATIONS FOR SELECTED IMPLEMENTATION STRATEGIES INCLUDING DOSE, STRUCTURE, AND CONTENT TO ADEQUATELY SUPPORT FUTURE CES EBI SCALING. THE PROPOSED APPROACH COULD SERVE AS A GUIDING MODEL FOR CES EBI SCALING PROCEDURES.