Latinos are among the most heavily impacted communities by the COVID-19 pandemic in the US, with more than 3 times higher rate than non-Hispanic whites. To address this disparity, this team of investigators and community partners has established a multi-pronged approach that leverages the skill set of trusted bilingual/bicultural peer navigators (or promotoras) to address social determinants of health (SDOH) that create barriers to testing (such as lack of insurance, immigration status, stigmatization or loss of job/income), and to expand access to free COVID-19 testing in community settings. The overall goal of this Phase I Testing Research Project called Juntos (Together) is to work closely with our community partners to systematically evaluate and refine current COVID-19 testing strategies, and to implement and evaluate innovative customized strategies to rapidly increase reach, access, acceptance, uptake, and sustainment of FDA-authorized/approved diagnostics (especially viral tests) for this highly vulnerable and health care marginalized community. We have assembled a multi-disciplinary team with methodological expertise in implementation science, community-based research, and laboratory medicine, and have a mature and long-standing collaboration with our partners at Esperanza Center, Casa de Maryland, the Mayor's Office of Immigrant Affairs, and religious leaders. Our team is enthusiastic to propose this implementation study to enhance access to testing for the Latino community, and will actively coordinate and share data and protocols with other grantees, the CDCC, and other research supported by the RADx-UP program.