The FSOT is offered three times a year and each testing window comes with its own registration window. These windows are as follows: For tests given between June 2nd and June 9th, registration is open from May 2nd to May 30th. For tests given between September 29th and October 6th, registration is open from August 29th to September 26th. For tests given between February 2nd and February 9th, registration is open from January 2nd to January 30th. The fee to register is just $5 and that fee will be returned to you a couple weeks after you take the test. If you don’t show up to your test, however, you have to pay a $72 no-show fee. So don’t register unless you are confident you will be ready to take the test.