Determining the inter-state border in Peninsular Malaysia is done through allocation, delimitation, demarcation and documentation. Starting in 1993, the Joint Boundary Committee (JBC) organised this procedure with the involvement of numerous state and federal organisations under the Ministry’s coordination. This study examines how JBCs interact to make decisions and how well JBC formation rules-in-use work. Surveys, interviews, participant observations and document reviews were used to gather data which was then analysed using the Institutional Analysis and Development Framework (IAD) based on content analysis. Position rules, boundary rules, choice rules, aggregation rules, scope rules, information rules and pay-off rules are some of the rules in creating the JBC, although they have not been able to successfully direct interaction. For enhancement, a configuration of seven types of rules can be used because the analysis results how that seven types of rules have found significant weaknesses in establishing existing JBCs. Therefore, implementing the IAD will effectively coordinate the management and administration of the JBC in making decisions to expedite the inter-state border delimitation and demarcation in Peninsular Malaysia in line with the 16th goal of the Sustainable Development Goals (SDGs).