This rule will amend the special regulations for Hot Springs National Park to update provisions about the use of thermal water by entities pursuant to written instruments signed by the Superintendent. This action will remove outdated provisions concerning the use of thermal water and insert new provisions that are consistent with the National Park Service's authority to issue written instruments to entities for the use of thermal water to provide services to guests or customers, consistent with the park’s enabling act. This action will consolidate all of the regulations concerning the use of thermal water in one section of 36 CFR for ease of reference. his rule also will remove regulations about commercial passenger-carrying motor vehicles that have been superseded by a statutory authority to manage these services through commercial use authorizations. Hot Springs National Park is a 5,500-acre park in Hot Springs, Arkansas.