Extension personnel are tasked with ensuring that 4-H volunteers have competencies identified in the Volunteer Research and Knowledge Competency (VRKC) Taxonomy, 4-H youth development's foundational volunteer skills framework. The VRKC Codebook is a qualitative analysis tool for accurately identifying VRKC-aligned needs expressed in volunteer needs assessment data. The codebook and accompanying guide were developed following a statewide volunteer needs assessment in which a need for VRKC-based evaluation tools emerged. 4-H educators can use the codebook and guide to efficiently detect areas of need that may otherwise be overlooked, empowering them to provide practical and impactful education and support systems better aligned with the unique research-based needs of their local volunteers.