2027 Licensing Exams Required After Completing a Library Science Degree Program

Imed Bouchrika, PhD

by Imed Bouchrika, PhD

Co-Founder and Chief Data Scientist

What Licensing Exams Are Required After Completing a Library Science Degree?

There is no single national licensing exam required for every library science graduate. In many cases, graduates can work in library and information roles with the right degree and experience but no formal license. Licensing or certification is more common for public librarian roles in certain states, school librarian positions, administrative roles, and specialized fields such as archives.

The right credential depends on the job setting. Before paying for an exam, identify the exact role you want, the state where you plan to work, and whether the employer treats licensure as mandatory or preferred.

  • Certified Public Librarian (CPL): A CPL credential is often tied to public library employment or advancement in states that regulate public librarians. Exam content may include information management, cataloging, library ethics, community service, and patron support. For candidates pursuing public library leadership, this credential can be more relevant than general academic credentials alone.
  • State-specific licensing exams: Some states require candidates to pass an exam based on local laws, library standards, administrative procedures, or public service expectations. These exams are not interchangeable across all states, so graduates should check the requirements where they intend to work before assuming one test will satisfy another jurisdiction.
  • Certified Archivist: Graduates seeking archival work may pursue certification focused on archival theory, records management, preservation, access, and digital curation. This is usually a specialized professional credential rather than a general librarian license.
  • American Library Association (ALA) Accreditation: ALA accreditation is not a licensing exam, but it is an important education standard. Many employers and licensing bodies prefer or require a degree from an ALA-accredited program because it signals that the curriculum meets recognized professional expectations.

A practical first step is to compare job postings in your target state. If most postings list certification as “required,” plan for the exam early. If they list it as “preferred,” licensure may still help with competitiveness, promotion, or salary negotiation. Graduates who want technology-heavy information roles may also compare their library training with adjacent credentials, including online AI degree options, when building a broader information management skill set.

What Topics Are Covered on the Library Science Licensing Exam?

Library science licensing exams usually test whether candidates can apply professional knowledge in real library settings. The exact content depends on the state or credentialing body, but most exams focus on how information is organized, accessed, managed, protected, and explained to users.

Preparation should start with the exam bulletin or candidate handbook, not with generic study materials. Over 60% of test takers find information organization and management the most challenging subjects, so candidates should give those areas extra attention if they appear on their exam outline.

  • Information Organization: This area covers cataloging, classification, metadata, indexing, and systems such as Dewey Decimal and Library of Congress. Candidates may be asked how to make materials discoverable and consistent across collections.
  • Information Retrieval: This topic focuses on search strategies, database use, source selection, and matching user questions with appropriate research tools. Scenario-based questions may ask candidates to choose the best approach for a patron’s information need.
  • Management of Library Services: Exams may include budgeting, staff supervision, planning, collection development, policies, community needs assessment, and service evaluation. This section is especially important for candidates pursuing public library administration or supervisory roles.
  • Reference and User Services: Candidates may be tested on research assistance, reader advisory, information literacy instruction, source evaluation, accessibility, and service to diverse user groups.
  • Legal and Ethical Issues: Common topics include copyright, privacy, confidentiality, intellectual freedom, records policies, equitable access, and professional responsibility.

Many exams use multiple-choice questions, but candidates should still prepare for applied decision-making. A strong answer often requires balancing policy, patron needs, ethics, and practical library operations. Students interested in user behavior, learning, and community support may also find that accelerated psychology program options complement certain public service or academic library career goals.

What Requirements Must Be Met to Take the Library Science Licensing Exam?

Eligibility rules vary by state, credential, and library setting, but most licensing exams require proof that the applicant has completed an appropriate library science education and, in some cases, supervised experience. The most common mistake is waiting until after graduation to check eligibility. By then, a missing practicum, accreditation issue, or coursework gap can delay certification.

Most candidates should review the following requirements before applying for an exam:

  • Possession of a master's degree in library science or a related field: Many professional librarian roles expect a graduate-level library science credential. Some jurisdictions specifically require a master’s degree to demonstrate advanced preparation in information organization, research services, library management, and professional ethics.
  • Completion of an accredited degree program: Accreditation can determine whether a degree is accepted for licensing. Candidates should verify whether their program’s accreditation satisfies the rules of the state or credentialing body they plan to use.
  • Specific coursework or practicum experience: Some licensing bodies require courses in cataloging, reference, school libraries, administration, youth services, or information technology. Others may require supervised fieldwork, internships, or practicum hours.
  • Residency or professional experience: Certain credentials or states may require employment experience, internship completion, or a supervised practice period before exam approval. This requirement is especially important for candidates changing states or moving into school library or administrative roles.

Keep copies of transcripts, course descriptions, practicum documentation, and employment verification. These records can be useful if a licensing board needs to evaluate whether your education meets specific standards. If you are still choosing a graduate program, compare accreditation, practicum access, state eligibility, and affordability; students often begin by reviewing mlis online programs that align with their intended licensure path. Some students also explore adjacent graduate study, such as an online psychology master’s program, when their career plans include education, research support, or community services.

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Source: U.S. Department of Education, 2023
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What Graduates Say About The Licensing Exams After Completing a Library Science Degree

  • : "Taking the licensing exam after completing my online library science degree was surprisingly manageable, especially knowing that the average cost for licensure hovered around a few hundred dollars, which felt like a great investment. Having that license opened doors I never expected and truly elevated my credibility in the field. I'm grateful for the balance of affordability and opportunity it provided. — Redd"
  • : "The journey to licensure was both challenging and rewarding. Paying for the exam and associated fees was a notable expense, but it reinforced my commitment to the profession. Today, holding a library science license allows me to contribute meaningfully to my community, and I often reflect on how the cost was a valuable stepping stone. — Pierce"
  • : "As a professional entering the field, the licensing exam was a formal yet fair assessment of my skills from my online library science program. The reasonable licensing costs made pursuing this credential feasible, and securing the license has been pivotal in advancing my career and gaining trust among colleagues. It's a clear mark of my expertise. — Easton"

Other Things You Should Know About Library Science Degrees

What are common eligibility restrictions for taking the library science licensing exam?

Eligibility restrictions for taking licensing exams in library science typically include holding a master's degree in library science from an American Library Association (ALA) accredited program or equivalent. Some states may require candidates to submit proof of supervised internship experience or continuing education credits before being allowed to test.

What is the format of the licensing exam for library science graduates in 2027?

The licensing exam format for library science graduates in 2027 typically includes multiple-choice questions, case studies, and scenario-based questions designed to assess knowledge of information management, cataloging, and library ethics. Various states may implement additional practical or oral exams depending on specific regional requirements.