Increasing interest surrounds the relation between Level of Personality Functioning (LPF), as defined by Criterion A of the Alternative Model for Personality Disorders, and the Hierarchical Taxonomy of Psychopathology (HiTOP) model. However, the integration of LPF within HiTOP remains unclear. Using bivariate correlation and linear regression analyses, this study assessed the associations between LPF and HiTOP spectra (externalizing antisocial, externalizing drug use, internalizing, antagonism, detachment, and psychoticism). A sample of 1,183 participants (46.2% female,