Navigable waters of the United States are those waters that are subject to the ebb and flow of the tide and/or are presently used, or have been used in the past, or may be susceptible for use to transport interstate or foreign commerce.
The Signs & Symptoms of Friedreich's Ataxia are: 1  loss of coordination (ataxia) in the arms and legs. 2  fatigue - energy deprivation and muscle loss.  vision impairment, hearing loss, and slurred speech.
Ataxia can develop over time or come on suddenly. Ataxia, a sign of a number of neurological disorders, may cause: 1  Poor coordination. 2  Unsteady walk and a tendency to stumble. 3  Difficulty with fine motor tasks, such as eating, writing or buttoning a shirt. 4  Change in speech. 5  Involuntary back-and-forth eye movements (nystagmus).