@Mark *******
just prior to the end of the first year u can fly out and then back in before the visa expiration date and get stamped back in for one more year. So in theory it is good for 2 years minus a few days if u time your departure and return just before it expires. Then at end of second year you fly back to your country (USA) and apply again for the Non-OA and repeat the process for 2 more years. Repeat as necessary. The Non-OA allows u to keep your funds back in your home country BUT it does require an annual Health Insurance police that is accepted under the Non-OA list of Health Insurance providers.