CORE exam vs Line-of-Service exam: do I take one test or two?
Quick answer
Do I take one national nursing home administrator exam or two?
Two. Nearly every state requires the NAB CORE of Knowledge examination, which covers knowledge common to all long-term-care administrators, plus one Line-of-Service examination specific to your setting. To run a nursing home you take the CORE plus the Nursing Home Administrator line. Some states then add a separate state law exam on top of those two.
One of the most common points of confusion for first-time candidates is how many national exams licensure actually requires. The short answer is two: a shared CORE of Knowledge examination and a setting-specific Line-of-Service examination. This structure is deliberate, and once you understand why it exists, the exam requirement, and how it interacts with any state exam, makes sense. This guide explains the two-exam design without quoting question counts, timings, or fees, which are national facts we verify against the credentialing association and record on the national exam facts page.
Why it is two exams, not one
Long-term care is not one setting. A skilled nursing facility, an assisted living community, and a home-and-community-based service each require an administrator, and those administrators share a large body of knowledge, but each setting also has knowledge unique to it. Rather than build a separate, entirely redundant exam for each setting, the credentialing system splits the knowledge in two:
- What every long-term-care administrator must know, tested once, in the CORE of Knowledge examination.
- What is specific to your setting, tested in a Line-of-Service examination for that setting.
This means the shared foundation is examined once and the specialty is examined separately, which is also why holding a credential in a second setting can be lighter: the CORE may already be behind you. The dual-credential guide covers that case.
What the CORE of Knowledge examination covers
The CORE examines the knowledge common to administrators across long-term care: resident care and quality, the physical environment and safety, human resources, finance, leadership and governance, and the regulatory framework that governs long-term-care facilities. It is the larger, broader of the two exams because it carries the shared foundation of the profession. Everyone seeking a long-term-care administrator credential takes it, regardless of setting.
The Line-of-Service examinations
On top of the CORE, you take one Line-of-Service examination matched to the setting you want to run. The lines correspond to the main long-term-care settings:
- Nursing Home Administrator (NHA), for skilled nursing facilities. This is the line you take to become a nursing home administrator.
- Residential Care or Assisted Living (RCAL), for assisted living and residential care facilities.
- Home and Community-Based Services (HCBS), for home-and-community-based service settings.
Each Line-of-Service exam tests the operations, regulations, and judgment specific to that setting. To be licensed as a nursing home administrator, you take the CORE plus the Nursing Home Administrator line. You do not take the other lines unless you are pursuing those credentials too.
Which combination you take
For the nursing home path, the combination is simple: the CORE of Knowledge examination plus the Nursing Home Administrator Line-of-Service examination. Nearly every state requires both. If you later decide to add an assisted living credential, you would add the Residential Care or Assisted Living line, and depending on your state, your CORE may already count.
When a state exam sits on top
The two national exams are not always the whole picture. Some states add a separate state law or jurisprudence examination on top, testing that state’s own licensing statutes and administrative rules. This is not a Line-of-Service exam; it is an additional state-specific requirement. Whether it applies to you is a per-state fact, flagged by the requirements wizard and recorded on the state pages. So the complete exam requirement for a given candidate can be two national exams, or two national exams plus one state exam.
How to prepare for the two-exam structure
Because the CORE is broad and shared, it rewards steady, wide preparation across all the functional areas of administration. The Line-of-Service exam rewards setting-specific depth. Plan your study to reflect that split rather than treating the two as one undifferentiated block. For the exact format, item counts, timing, and passing standards, all national facts, see the national exam facts page, and for where the exams sit in the whole licensure sequence, see how to become a licensed nursing home administrator.