Frequently Asked Questions

What is the California Supplemental Exam for landscape architects?

The purpose of the California Supplemental Exam for landscape architects is to bring to landscape architect candidate’s attention specific practice issues more prevalent or unique to California and to familiarize candidates with the rules and regulations governing the profession in the state. The California Supplemental Exam for landscape architects is an additional license requirement imposed by the California Landscape Architect Technical Committee (LATC) which is responsible for administering the landscape architect licensing program. The CSE tests a candidate’s knowledge of practice knowledge required to perform landscape architecture services in the state.

I heard that the California Supplemental Exam is an open-book take-home exam. Is that true?

According the the LATC website, the current version of the California Supplemental Exam for landscape architects is no longer a take-home test. “Effective September 16, 2007 the take-home version of the California Supplemental Examination (CSE) was retired. In its place the LATC administers a multiple-choice examination.” I guess we missed out on the easier version of the exam.

Is There a Study Guide for the California Supplemental Exam?

LATC publishes a candidates guide that has a brief description of the different topics covered on the CSE. I’ve put together a better study guide, Pass the California Supplemental Exam for Landscape Architects, which is available on this website. However, there is plenty of content on this blog to help you prepare for the CSE.

How Many Questions are on the CSE for landscape architects?

There are 100 multiple-choice questions on the CSE.

How is the California Supplemental Exam for Landscape Architects administered?

The Landscape Architects Technical Committee (LATC) administers the CSE  as a computer based multiple-choice examination under contract with Psychological Services, LLC (PSI).

Where Can I Take the CSE In California?

PSI has 13 California test centers that offer the California Supplemental Exam for landscape architects.

Southern California:

  • Anaheim
  • Carson
  • El Monte
  • Riverside
  • San Diego

Central California

  • Bakersfield
  • Fresno
  • Sacramento

Northern California:

  • Atascadero
  • Hayward
  • Redding
  • Santa Clara
  • Santa Rosa

What if I live outside California? Can I take the CSE for landscape architects closer to home?

Yes. PSI has several test facilities throughout the United States.

  • Albuquerque, NM
  • Atlanta, GA
  • Boston, MA
  • Charlotte, NC
  • Cranberry Township, PA
  • Des Moines, IA
  • Houston, TX
  • Las Vegas, NV
  • Portland, OR.
  • Southfield, MI

How Frequently is the CSE Offered?

Unlike the LARE, the CSE if offered year-round by appointment with PSI. Once you are approved to take the exam by the LATC, you may set up an appointment for the CSE at your convenience.

What if I don’t pass the CSE the first time? Is there a waiting period before I can take the exam again?

You must wait three months before you can take the California Supplemental Exam again. You can take the CSE as many times as necessary to pass.

Can I appeal the grade on the CSE if I don’t pass?

No. There is no appeals process for the CSE. Just prepare well and you will likely pass the first time.


I’ll put up a list of frequently asked questions about the California Supplemental Exam (CSE) for landscape architects soon.

Submit a question in the comments and I will add it to the FAQ.

Thanks for your suggestions.

Do You Want to Pass the CSE?

You are in the right place. Learn what you need to pass the California Supplemental Exam for landscape architects the first time. This site is dedicated to aspiring landscape architects who want to get a California landscape architect license. I'll share my research for the CSE as I prepare for the exam.

Feel free to submit a question and I'll do my best to answer it here.

Good luck,

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