This paper provides new evidence on whether removing geographical boundaries from kidney allocation markets improves the assignment of these scarce resources by increasing competition among transplant centers. The strict geographical boundaries have long been hypothesized to be a contributing factor to low rates of successful transplant matching as well as disparities in match rates across different types of populations. Using SRTR data on the universe of all donors, transplant candidates, and transplant recipients, this paper exploits a policy change that replaced geographical boundaries within which donor kidneys can be matched with recipients with a more flexible 250-nautical mile radius around each donor on March 15th, 2021. I employ a regression discontinuity model that exploits exogenous variation in the timing of the policy implementation. Findings of this paper provide evidence on whether removing geographical barriers increases the efficiency of the allocation system and enhances equity by increasing access for vulnerable subgroups. Furthermore, I employ a difference-in-differences design that exploits variations across transplant hospitals and time to study the effects on transplant candidates.