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Welcome to OASys 1.0: The City of New York Online Application System Website
OASys 1.0 is limited to users until Fall 2019 if you applied for one or more examinations on or before January 26, 2019, and the eligible list(s) have not yet been established. If not applicable, click here to be directed to the new and improved OASys 2.0.
Before You Begin:
  • This site is best viewed with a resolution of 800x600 (or higher) and browsers Microsoft Internet Explorer 8, 9, and 10 or Firefox 17, 18, and 19.
  • OASys does not support the use of multiple tabs within the browser to complete your application and/or exam.
  • This website uses pop-up windows to display key information. Please make sure that you have not disabled popup windows on your browser. For more information, please refer to your browser’s settings.
  • If you choose to pay the application fee for a civil service exam with a credit/debit/gift or bank card, you will be charged a nonrefundable fee of 2.000% of the payment amount at the time of processing.
We strongly recommend that you begin by first carefully reading this homepage and the related FAQs, which can be accessed from the sidebar on the left side of the screen.
Exams at the Computer-based Testing and Applications Centers
To apply for and take a self-scheduled exam at the DCAS Computer-based Testing and Applications Centers (CTACs), you must log into OASys to complete an application and make a reservation to take the exam at the location and time that are most convenient to you. The Monthly Examination Schedule will provide the dates and times for self-scheduled exams held at the CTACs as well as the filing and testing dates for each exam.
Additional Assistance/More Information
If you have any questions regarding the application process, you may contact DCAS at To learn more about DCAS, click here or click the About DCAS button on the left side of the screen.
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