Updated at 10:25am on 4/13: This issue has been fixed and the Grade 5 HSA Science Assessment is now available to initiate testing in the Online Testing System. Mahalo for your patience.
Original announcement text: The Grade 5 HSA Science Assessment is currently unavailable to initiate testing in the Online Testing System (today, April 13th). Cambium Assessment is actively working to resolve the issue. An announcement will be posted once the Grade 5 HSA Science Assessment is back online. Mahalo for your patience.