Abstract Introduction: Multilevel barriers to screening and follow-up contribute to persistent disparities in cervical cancer burden, particularly in marginalized communities receiving care in safety-net healthcare settings. While evidence-based interventions (EBIs) exist for improving cancer screening and follow-up, building capacity to identify effective strategies for implementation and alignment of EBIs to the context of safety-net settings and the diverse communities they serve is critical. Methods: Supported by the HRSA Accelerating Cancer Screening Program, Chinatown Service Center, a multi-site Federally Qualified Health Center (FQHC) serving Chinese and Latino/a populations in Los Angeles, and USC Norris Comprehensive Cancer Center established a new partnership to identify multilevel factors that impact cervical cancer screening, follow-up and referral and inform the implementation of EBIs to improve care. We conducted a mixed methods assessment June-December 2023 to understand care processes through surveys and qualitative interviews (20-30 minutes, guided by the Consolidated Framework for Implementation Research) with providers and clinic staff and medical chart reviews of patients with ≥ 1 cervical cancer screening order January 2020-March 2023. Results: Surveys (n=23) showed higher knowledge of screening guidelines (p<0.05) and more confidence discussing cervical cancer with patients (p<0.05) among providers compared to clinic staff, indicating opportunities for staff training. Qualitative interviews (n=23) identified inner setting barriers such as limited system-level implementation of cervical cancer screening guidelines and limited technology supports to track patients requiring follow-up. At the individual level, older patients and those not sexually active often declined testing and requested gender concordant (female) providers. Motivation for building cervical cancer care capacity within the FQHC were noted, with clinic members highlighting FQHC strengths in addressing cultural barriers, social needs, and community outreach. Several outer setting barriers emerged for referral and follow-up care, including long wait times for referrals, trouble finding language concordant specialists, transportation barriers, and difficulty accessing specialists through their managed care network. Medical chart abstractions (n=1,428) identified opportunities to improve closed-loop communication with specialists and limited ease for clinic staff identify high and low risk screening results for further treatment. Discussion: By establishing a new FQHC-NCI cancer center partnership, we advanced our combined capacity to address cervical cancer care equity in marginalized communities. We identified patient-level (cultural, logistic, social determinants), provider/clinic staff-level (training needs, patient tracking), and system-level (access to and communication with specialists) barriers that will require selection of EBIs and implementation strategies via a partnered approach with local specialists, health systems, payers, and policymakers. Citation Format: Jennifer Tsui, Samantha Garcia, Emily Dang, Alejandra Ramos, Allison Oh, Kathy Lui, Angela Ching, Eugene Hui, Chanita Hughes Halbert, Lourdes Baezconde-Garbanati, Jack Cheng. Building capacity for equitable cervical cancer care in safety-net settings through an FQHC-NCI comprehensive cancer center partnership in Los Angeles [abstract]. In: Proceedings of the 17th AACR Conference on the Science of Cancer Health Disparities in Racial/Ethnic Minorities and the Medically Underserved; 2024 Sep 21-24; Los Angeles, CA. Philadelphia (PA): AACR; Cancer Epidemiol Biomarkers Prev 2024;33(9 Suppl):Abstract nr C132.