The main purpose of this legislation is to ensure that veterans who suffer from traumatic brain injury (TBI) or post-traumatic stress disorder (PTSD) have access to hyperbaric oxygen therapy as a treatment option. The bill aims to improve the health and well-being of these veterans by providing them with an additional therapeutic resource. Key provisions of the legislation include the requirement for the Secretary of Veterans Affairs to provide hyperbaric oxygen therapy to veterans diagnosed with TBI or PTSD. This therapy must be administered through approved healthcare providers.