2.4 Applications, Authorization to Test, and Credential Number Accuracy

Two Applications, Not One

Washington runs nursing-assistant credentialing as two separate processes, and confusing them is the leading cause of preventable delays:

1. Applying for NAC certification with the Department of Health (DOH). This should be done during your training program and produces your NAC credential number.
2. Applying for and registering for the state exam - the skills test (through your program or a WABON-approved site) and the written/oral knowledge test (through Credentia's CNA365 system).

You must apply for certification before you can register for the written portion, because the credential number is required at registration. A candidate can be academically ready and still unable to register if the certification application has not produced a credential number yet. The NAC application fee is $85 for first-time applicants, with a $2.50 service fee for online card payment; if your credential has been expired more than a year, the fee is $197.

Authorization to Test Is Part of Eligibility

For every reviewed route - E2, E3, E4, E5, E7, E8, E9 - you must submit a complete DOH Credentialing application and receive an Authorization to Test (ATT) before registering. You cannot test without an ATT, and at the skills test you must bring the ATT letter as proof of eligibility. If you arrive without it, the site may turn you away and is not obligated to refund your test fee.

Use this front-loaded checklist before paying any fee or picking a date:

• Identify your WABON route (E1-E9) and whether it needs an ATT.
• Complete the DOH Credentialing application for reviewed routes.
• Wait for the Authorization to Test letter from DOH-Credentialing.
• Keep your NAC credential number available and accurate.
• Bring the ATT letter to the skills test.
• Review cancellation and rescheduling rules before booking.

Preparation is not permission. Strong skills practice does not authorize testing if the route requires review first - which is why the route checklist belongs at the front of the study plan, not the end.

Credential-Number Accuracy and Fees

The credential number deserves special care. Your NAC credential number starts with NAC.NC, and the handbook flags a specific, frequent error: entering the Nursing Assistant Registered (NAR) number instead. Because the two numbers look similar, a single transcription mistake in CNA365 can cause "a big delay in your NAC credentialing process." Find your pending number on the DOH Provider Credential Search and double-check every character before submitting.

Paying a fee does not make you eligible - payment and eligibility are separate. A careful candidate confirms the route, completes the certification application, obtains the ATT where required, verifies the NAC.NC number, and only then schedules in the correct skills-first sequence.

Payment, Reimbursement, and Scheduling Logistics

The administrative phase also has money and scheduling rules worth knowing before you book anything. All exam payment is made at the time you schedule, by credit card, prepaid card, ACH/electronic check, or electronic voucher - and no payment is accepted at the test site. Once submitted, Credentia fees are non-refundable and non-transferable, which is exactly why arriving without your ATT letter (and being turned away) is so costly: the fee is gone.

There is one important relief for nursing-facility employees. Nursing homes are required by state and federal regulations to reimburse the cost of the state exam for their nursing-assistant employees, including the cost of each attempt if retesting is needed. If you work in a nursing home while certifying, ask your employer about this reimbursement before you pay out of pocket.

Scheduling specifics differ by exam part and delivery method:

For the written or oral test you should use a desktop or laptop to register; smartphones and tablets are not recommended for CNA365 reservations. If you choose the oral examination, remember it must be requested on the application in advance - you cannot switch to oral on test day - and for an online proctored oral exam you must supply your own wired headset. Build these logistics into your plan so the only variable left on exam day is your knowledge, not a preventable scheduling or payment surprise.

Finally, keep your identity details consistent across every system. The name on your DOH certification application, your CNA365 registration, and your government photo ID should match exactly, because a mismatch at check-in can cost you the appointment with no refund. The same care you give the NAC.NC credential number applies to your legal name, date of birth, and contact email - these are the fields that route your authorization and your results, and a single typo can quietly stall an otherwise perfect application.