The three-year completion deadline for feasibility studies is counted from the signing of the Feasibility Cost Sharing Agreement (FCSA), which initiates the feasibility phase, until the Chief of Engineers signs the Chiefâs Report.
Legal blindness relates to the best corrected vision after an eyeglass prescription is determined. You cannot look at the numbers on your eyeglass prescription to determine this. If the best you can do on an eye chart, with the best eyeglass correction, is 20/200, that is legal blindness in most states in the usa.
20/70 routine that what normal eyes can see at 70 feet, you hold to be 20 feet away to see it the track they do. I believe it's around 20/150 that you are considered legally blind. Of course that's short corrective lenses.