RecruitingBehavioural interventionIncreasing Equity in Lung Cancer ScreeningThe overall objective of this mixed methods study is to: 1) Refine the Emergency Department Lung Cancer Screening (ED-LCS) intervention using qualitative interviews among key stakeholders; 2) pilot test the ED-LCS intervention evaluating the intervention efficacy, acceptability, and feasibility; and 3) provide an in-depth description of stakeholders' experiences with the ED-LCS intervention for future refinement.