- CTS means Certified Temporary-Staffing Specialist, a credential administered by the National Association of Personnel Services (NAPS).
- The exam has 150 questions in 2 hours; 113 correct answers are required, which NAPS describes as 75%.
- Registration costs $300 for NAPS members or $600 for nonmembers, including the legal manual, exam and certificate.
- Preparation centers on ten legal and operational topics, from discrimination law to joint employer risk.
What the CTS Credential Actually Is
CTS stands for Certified Temporary-Staffing Specialist. It is a professional certification for people who work in or alongside the temporary-staffing industry, and it focuses on the legal and compliance knowledge that staffing work depends on. If you have seen the acronym attached to other credentials in unrelated fields, set those aside. Everything on this page concerns the staffing credential issued through the National Association of Personnel Services (NAPS).
The credential is not a general business or HR certificate. Its curriculum is built around the situations a temporary-staffing firm faces every day: who counts as the employer when a worker is placed at a client site, what you can and cannot ask during an interview, how contracts with clients and workers should be handled, and which laws apply specifically to temporary services work. That narrow focus is what makes it distinctive, and it is why the exam rewards candidates who have thought carefully about real placement scenarios rather than memorized abstract definitions.
If you are comparing terminology across the web, our related explainers cover the naming questions from several angles: what does CTS stand for, CTS meaning, and what is CTS certification. This article gives the full overview in one place.
Who Issues It and Who Can Sit for It
NAPS administers the CTS examination online through its Certification Center. For candidates who prefer a classroom setting, NAPS also offers an optional Certification Immersion Class (CIC), which includes a paper-and-pencil version of the examination. Both routes lead to the same credential.
Eligibility, and a wrinkle worth knowing about
Two things are clear from NAPS materials. First, there is no length-of-service requirement, so you do not need a set number of years in the industry. Second, NAPS membership is not required. Candidates do need to accept the NAPS ethical standards and program rules.
The less clear part is who exactly qualifies by role. NAPS's current CTS page extends access to HR professionals and hiring managers, which suggests a broad audience. However, the Certification Program Rules page still describes a requirement to be a currently employed, full-time owner, partner, manager or employee in the temporary-service business. These two descriptions do not fully line up, so if your situation is borderline, such as an HR generalist at a client company, confirm your eligibility directly with NAPS before paying. Our CTS requirements guide walks through how to approach that check.
How the Exam Is Built
The CTS examination contains 150 questions to be completed in 2 hours. That works out to well under a minute per question on average, so pacing matters. Questions come in three styles:
- Multiple-choice questions testing recall of rules and definitions
- True/false questions that reward precision, since a single qualifier can flip an answer
- Case-based multiple-choice questions that present a staffing scenario and ask what the correct action or legal conclusion is
To pass, you need 113 correct answers, which NAPS describes as 75%. If you are weighing how that threshold feels in practice, see our breakdown of the CTS passing score and the difficulty guide.
| Exam Element | CTS Detail |
|---|---|
| Administering body | National Association of Personnel Services (NAPS) |
| Delivery | Online via NAPS Certification Center; optional paper-and-pencil exam at a Certification Immersion Class |
| Number of questions | 150 |
| Time allowed | 2 hours |
| Question types | Multiple-choice, true/false, case-based multiple-choice |
| Correct answers needed | 113 (described by NAPS as 75%) |
| Content updates | Manual and exam updated annually |
One practical note: the manual and examination are updated annually, but NAPS's public descriptions do not identify a specific current manual edition. Always study from the manual you receive with registration rather than from older copies or secondhand notes, since a legal topic that changed this year could appear on the exam.
The Ten Preparation Topics
NAPS does not publish a formal weighted exam blueprint. What it does publish, through its certification FAQ and the manual description, is a list of preparation topics. Combined, they give ten areas, which we treat here as an unweighted study curriculum rather than an official domain count. Because no weights are published, you should not assume any topic is "minor." For a deeper walk-through of each area, see our complete guide to the CTS content areas.
Domain 1: Laws of discrimination
The foundation of staffing compliance. Candidates must understand which characteristics are protected and how discrimination claims arise in recruiting and placement.
- How discriminatory intent differs from discriminatory effect
- Where staffing firms and clients can each be exposed
- How client requests can create liability for the firm
Domain 2: Application and interview practices
What a staffing firm may ask, record and consider when taking applications and interviewing.
- Lawful versus unlawful interview questions
- Consistent application procedures across candidates
- Documentation habits that protect the firm
Domain 3: Contracts
Agreements with clients and with temporary workers, including how terms allocate responsibility.
- Key provisions in client service agreements
- Worker-facing agreements and what they must communicate
- How contract language interacts with legal obligations
Domain 4: Employer/employment definitions
Who is the employer, and who is the employee. In staffing, the answer is rarely simple.
- Distinguishing the staffing firm's role from the client's role
- Employee versus independent contractor classification concepts
- Why definitions drive tax, benefit and liability outcomes
Domain 5: Screening and selection of temporary workers
How candidates are evaluated and chosen, and the legal guardrails around those choices.
- Screening methods and the consistency they require
- Selection criteria that connect to the job
- Avoiding practices that screen out protected groups
Domain 6: Laws unique to temporary services work
Rules that apply to temporary staffing in ways they do not apply to traditional employment.
- Obligations specific to placing workers with clients
- Where staffing-specific requirements differ from general employment law
- Scenario questions that test whether you recognize a staffing-specific rule
Domain 7: Family leave
How leave obligations work when the worker is placed by a staffing firm rather than hired directly.
- Which entity bears leave responsibilities in a placement
- Eligibility concepts and how temporary assignments affect them
Domain 8: ADA
The Americans with Disabilities Act as it applies to applicants, temporary workers and client sites.
- Reasonable accommodation in a temporary assignment
- Medical inquiries and when they are permitted
- Shared responsibilities between firm and client
Domain 9: Drug testing
When and how testing may be used, and the procedural discipline it requires.
- Testing policies and consistent application
- Interaction between testing, discrimination and ADA concerns
Domain 10: Joint employer
The doctrine under which both the staffing firm and the client may be treated as employers of the same worker.
- Factors that create shared liability
- How control over the work influences the analysis
- Why contract language alone does not settle the question
Key Takeaway
Notice how often the topics overlap. Discrimination, the ADA, drug testing and application practices all intersect, and the case-based questions are built to exploit that overlap. Study them as a connected system, not ten silos.
What It Costs and How It Is Maintained
Registration and retests
Registration includes the legal manual, the examination and the certificate. NAPS prices it by membership status:
| Item | NAPS Member | Nonmember |
|---|---|---|
| Registration (manual, exam, certificate) | $300 | $600 |
| Retest | $150 | $300 |
The gap between member and nonmember pricing is large enough that it is worth comparing against the cost of NAPS membership itself before you register. Our CTS certification cost breakdown covers how to think through that decision.
Keeping the credential active
CTS is not a one-time certificate. To maintain it, you complete 20 contact hours (2.0 CEUs) each year, and 17 of those hours must come from NAPS-approved content. There is also an annual renewal fee of $35 for individuals at member firms or $50 for nonmembers, due on your examination anniversary. Build your continuing-education plan around that anniversary date from day one so the requirement does not sneak up on you.
Who Gets Value From the Credential
The most natural audience is people inside temporary-staffing and personnel-services firms: owners, partners, managers and recruiters who make placement and compliance decisions daily. The current NAPS CTS page also points to HR professionals and hiring managers, which reflects that staffing law touches anyone who sources or manages contingent workers.
Employers in this space are staffing agencies and personnel-service firms, and for them the credential signals that a team member understands the legal exposure inherent in placing workers. It can support credibility with clients, particularly when contract and joint-employer questions arise. For candidates thinking about career impact, our guides on whether the certification is worth it, salary considerations and CTS-related jobs explore the practical side without overstating what a credential alone can do.
Sequencing the Topics for Your Study Plan
Because the ten topics are unweighted, a sensible plan is to order them by dependency: learn the foundational definitions first, then the laws that build on them. A four-week arrangement that front-loads the concepts the case questions lean on most:
Definitions and discrimination
- Domain 4: employer/employment definitions
- Domain 1: laws of discrimination
- Read the manual's sections on both before attempting any practice questions
The hiring pipeline
- Domain 2: application and interview practices
- Domain 5: screening and selection
- Domain 9: drug testing
Leave, accommodation and staffing-specific law
- Domain 8: ADA
- Domain 7: family leave
- Domain 6: laws unique to temporary services work
Contracts, joint employer and timed practice
- Domain 3: contracts
- Domain 10: joint employer
- Full 150-question timed run at roughly 48 seconds per question
Joint employer and contracts come last on purpose: they pull together definitions, discrimination, and the hiring pipeline, so they are easiest once the earlier material is solid. For a fuller plan, see our CTS study guide, and keep the one-page cheat sheet handy for last-minute review. To test yourself under realistic conditions, use the CTS practice tests and work through case-style scenarios, since that is where overlapping topics get tested hardest.
Frequently Asked Questions
CTS stands for Certified Temporary-Staffing Specialist, a credential administered by the National Association of Personnel Services (NAPS). It focuses on the legal and compliance knowledge that temporary-staffing work requires.
The exam has 150 multiple-choice, true/false and case-based multiple-choice questions to complete in 2 hours. You need 113 correct answers, which NAPS describes as 75%.
No. NAPS membership is not required, and there is no length-of-service requirement. Members do pay less, though: $300 versus $600 for registration, and $150 versus $300 for a retest.
The standard exam is administered online through the NAPS Certification Center. An optional Certification Immersion Class offers a paper-and-pencil examination for candidates who prefer that format.
Complete 20 contact hours (2.0 CEUs) annually, including 17 hours of NAPS-approved content, and pay the annual renewal fee of $35 for individuals at member firms or $50 for nonmembers, due on your examination anniversary.
If you are still orienting yourself, our overview pages on what CTS certification is and CTS training options are good next stops, and exam scheduling details will help you plan your timeline.