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.
SUPPLEMENTAL DATA: E - APPENDIX I (E)A-1): RATING SCALE FOR FRIEDREICHâS ATAXIA. I. FUNCTIONAL STAGING FOR ATAXIA. Increment by 0.5 may be used if the status is about the middle between two stages. STAGE. STAGE 0: Normal. STAGE 1.0: Minimal signs detected by physician during screening. Can run or jump without loss of. balance. No disability.