1. Short title This Act may be cited as the Regional Infrastructure Accelerator Act of 2017 . 2. Purpose The purpose of this Act is to establish a regional infrastructure accelerator program that— (1) facilitates and mobilizes investment in, and the long-term financing of, economically viable covered infrastructure projects of regional or national significance by providing funding for these projects, including through private sector financing, to accelerate the delivery of high-quality, critical infrastructure facilities through a self-sustaining regional infrastructure accelerator that mitigates risk with technical expertise and best practices