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OASIS COS-C Certification Exam: Miami
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OASIS COS-C Certification Exam: Miami

When: Friday, September 14, 2018
8:45am-11:30am, Registration at 8:15am
Where: Miami Airport Marriott
1201 NW LeJeune Rd, Bldg A
Miami, Florida  33126
Contact: Julia Heath
(850) 222-8967

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OASIS Answers' COS-C Certification Exam: Demonstrate Your Expertise in OASIS!

HCAF will be offering the paper and pencil version of the OASIS Answers, Inc.’s COS-C exam. Home care providers may take this voluntary exam in order to demonstrate their expertise and commitment to OASIS accuracy. The exam is open book, consists of 100-multiple choice questions and there is 2.5 hours provided to complete it. Upon successful completion of the exam, participants are awarded the Certificate for OASIS Specialist – Clinical (COS-C) designation. Computer-based testing is also available.

Are you...

  • Looking to earn your certificate as an OASIS specialist and enhance your professional credibility? 
  • Wanting to demonstrate your OASIS expertise?
  • Desiring an objective evaluation of your knowledge?
  • Searching for a way to increase your value to your current or future employer or clients?
If any of these apply to you, consider sitting for the Certificate for OASIS Specialist-Clinical (COS-C) examination. Established in 2004, the Certificate for OASIS Specialist-Clinical (COS-C) exam is the premier, nationally standardized, psychometrically validated test that evaluates a clinician's knowledge of CMS' OASIS guidelines. The exam itself undergoes rigorous performance and item-analysis adhering to psychometric industry standards to ensure item validity, content relevance, result reliability and overall evaluation integrity. Employing such a rigorous process allows OASIS Answers' to confidently award the COS-C certificate to those select individuals who demonstrate OASIS expertise by passing the COS-C exam.

Interested, but have a few questions? Here are the most frequently asked questions about the exam from potential candidates like you!

How difficult is the exam? 

  • The COS-C Exam Passing Rate in 2016 was 73%. Passing rate is defined as the percentage of candidates who achieved a successful passing score during a specified time frame (i.e. during the calendar year 2016, 73 out of every 100 COS-C testing candidates achieved the passing score).
  • Historically (from 2004-2016) the passing rate has remained extremely consistent, varying between 71% and 76% from year to year, indicating a fair exam, not too hard and not too easy.

What information is covered? 

  • The exam will always test you on the most current CMS OASIS data collection guidelines.
  • Visit OASIS Answers' COS-C Exam Prep webpage to view the latest exam detail including an expanded description on all exam content areas along with a sample test question for each.
  • The COS-C exam is open book so feel free to bring printed resources with you, including the latest annual INSTANT OASIS Answers guide (“The Brown Book”).
    • Suggested resources: CMS Core OASIS Documents; OASIS-D Guidance Manual, Chapter 3; CMS OASIS Q&A's; other CMS-based resources/handouts from OASIS training classes.

How much does the exam cost? 

There are different costs for taking the COS-C exam depending on (a) which type of administration you choose (Paper & Pencil vs. Computer Based Testing), and (b) if you are an initial or renewal candidate:

  • Initial Exam $250
  • Renewal Exam $200
The COS-C Exam is a three-year designation, thus when you pass the COS-C exam, you will not incur yearly maintenance fees or have costly mandatory Continuing Education requirements to fulfill. Decide for yourself how you'd like to stay up-to-date, utilizing whatever self-study or formal workshop approach you prefer. 

How do I prepare? 

  • Independent study of the current rules and guidance provided by CMS is recommended for all exam candidates though is not explicitly required.
  • Attend a session of the 2-day Blueprint for OASIS Accuracy workshop and receive the most comprehensive and focused review of current data collection guidance available.
  • Every Blueprint for OASIS Accuracy attendee will receive a free copy of the 600+ page Blueprint handout which contains all the most recent versions of the CMS data collection resources, and which is an invaluable resource for review and during the open-book exam. The handout is updated monthly with the most current CMS guidance, so please recognize that older copies may contain outdated or incomplete guidance.
  • Use the domain descriptions and sample questions on the OASIS Answers COS-C Exam Prep webpage to test yourself.
  • If you cannot attend training, make sure you have and are familiar with the most current CMS OASIS guidance.
  • COS-C Exam Details & Sample Questions
Exam registration must be received 2 weeks prior to exam date. 
Check-in at exam site by 8:30am.
Exam Questions? Contact OASIS Answers at 425.868.2304 or

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