Today those preparing for the CPA exam must hew to a precise schedule, as there are limited windows of opportunity to take the test each year. However the National Association of State Boards of Accountancy (NASBA) has approved a new rule that would eventually eliminate the need for test window limitations, to allow much faster retakes of failed exam sections. Currently, if someone fails a section of the exam, that person would generally need to wait until the next testing window to retake it. Once system changes have eliminated the need for such limitations, candidates would be able to retake a test section once their grade for any previous attempt of the same test section has been released. This new model would be one of "continuous testing," which the NASBA said should begin by June 30, 2020. NASBA said that several jurisdictions have already started adopting rules similar to the new Uniform Accountancy Act Model Rule that incorporates the change.