由于NTS的是有有效期的，因此考生一定要在報考時間及科目非常確定的情況下再去申請NTS,否則會給考生自己帶來精力和金錢上的損失。

   Boards of accountancy will set a time period for which an NTS is valid （generally six months） during which you must schedule and take the examination section（s）， after which it will expire and all fees will be forfeited. It is strongly suggested that you not apply for a section of the examination until you are ready to take it. If you do not take all sections for which you registered before the NTS expires， you will not be able to extend it or receive a refund of any of the fees you have paid. Please be advised that cancelling an Exam appointment does NOT change the expiration date of your NTS. All jurisdictions have established a six-month NTS validation period， except for the following jurisdictions：

Texas 90 days from application date
California 9 months from NTS issue date
Hawaii 9 months from NTS issue date
Louisiana 9 months from NTS issue date
Utah 9 months from NTS issue date
North Dakota 12 months from NTS issue date
South Dakota 12 months from NTS issue date
Virginia 12 months from NTS issue date

   PLEASE NOTE： The Notice to Schedule is valid for one testing event or until the expiration date， whichever is first exhausted for each examination section and will include non-testing months. Once an NTS has expired， you will need to submit a new application， including application and testing fees. Fees submitted for an expired NTS cannot be applied to future examinations. You cannot have more than one open NTS for the same section. You must receive the score or allow the NTS to expire before you can apply for the same section again and receive a new NTS for that section