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California Architecture License: What Out-of-State Architects Need to Know About LATC and CAB

How California’s architecture licensure process works, the California Supplemental Examination (CSE), LATC and CAB requirements for reciprocity, California-specific regulations, and what architects licensed elsewhere need to do to practice in California.

January 22, 2026

California Architecture Licensure Is Not the Same as Other States

Most states grant reciprocal licensure to architects who hold the NCARB Certificate without significant additional requirements. California does not. The California Architects Board (CAB) administers architecture licensure in California through a process with requirements that go beyond NCARB’s standard framework. For architects who want to practice in California - the largest architectural market in the United States - understanding these requirements is essential.

The California Supplemental Examination (CSE)

California requires licensed architects from other states and countries seeking California licensure to pass the California Supplemental Examination (CSE), regardless of whether they hold the NCARB Certificate. The CSE tests knowledge of California-specific regulations, codes, and professional practice standards that are not fully covered by the national ARE. Topics include California Business and Professions Code provisions governing architecture, California Building Code requirements that differ from the IBC, seismic design provisions specific to California’s higher seismic risk, Title 24 energy compliance, and California’s specific contract and consumer protection laws.

LATC and the Foreign Education Evaluation

California’s Landscape Architects Technical Committee (LATC) handles landscape architecture. For architecture specifically, foreign-educated architects must submit their credentials through the California Architects Board for evaluation. California accepts NAAB-accredited degrees (B.Arch., M.Arch., D.Arch.) and also evaluates foreign credentials through the Board’s foreign education review process. This is distinct from NCARB’s education evaluation programs.

AXP and Experience Requirements

California accepts NCARB’s AXP as satisfying the experience requirement, but requires that candidates have NCARB AXP completion verified. California also has its own experience pathways for candidates who do not have access to NCARB’s AXP framework, though the NCARB AXP is the standard pathway for most candidates.

Maintaining a California License

California architect licenses expire on the last day of the licensee’s birth month every two years. Continuing education (CE) requirements for California include a minimum of 5 AIA CES hours on California-specific content, plus the total hours required by California’s biennial CE requirement. California also requires implicit bias training as part of license renewal.

Key Points for ARE Candidates

  • The NCARB Certificate does not grant automatic reciprocity in California - the CSE is also required.
  • The California Supplemental Examination (CSE) tests California-specific code and practice knowledge.
  • California’s seismic, energy (Title 24), and accessibility requirements differ from standard IBC/ASHRAE baselines in important ways.
  • The California Architects Board (CAB) is the state licensing authority; applications go through CAB, not NCARB directly.
  • California is the most architecturally active state by project volume, making California licensure valuable for national firm practice.

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