  (Abridged) In this white paper, we outline the major barriers to access
within the educational and professional practice of astronomy. We present
current best practices for inclusivity and accessibility, including classroom
practices, institutional culture, support for infrastructure creation, hiring
processes, and outreach initiatives. We present specific ways--beyond simple
compliance with the ADA--that funding agencies, astronomers, and institutions
can work together to make astronomy as a field more accessible, inclusive, and
equitable. In particular, funding agencies should include the accessibility of
institutions during proposal evaluation, hold institutions accountable for
inaccessibility, and support efforts to gather data on the status and progress
of astronomers and astronomy students with disabilities.
