You will need a copy, eventually it will get forwarded to your old instructor and hopefully they can mail it on to you. I have experienced wait times of as little as 2 months to a year or more, I am currently waiting on one from early march. I am unsure what happens if you don't have it. Recently one of my dojomates took her first test in 17 years, so I am curious what she did. I am running under the assumption that ranking records aren't held nationally like in judo?