Clinical Laboratory Scientist and Limited Clinical Laboratory Scientist Trainee Licenses
*The information on this page applies to the Clinical Laboratory Scientist (Generalist) Trainee license.
For information about CLS Trainee licenses limited to a specialty or subspecialty select the limited license type from the list below:
Thank you for your interest in the California Clinical Laboratory Scientist (CLS) Generalist Trainee license. Laboratory Field Services (LFS) requires applicants to submit documentation of academic coursework to qualify for licensure. For information about CLS and limited CLS licenses please visit the CLS page.
Work experience in California as an unlicensed laboratory staff person will not be accepted as qualification toward any clinical laboratory license. Please note that biotech/pharmaceutical, forensic, academic, veterinary, research, and student laboratory experience cannot count as work experience or training for any clinical license.
Scope of practice
Bachelor’s degree (baccalaureate) with specific course requirements:
- 16 semester or equivalent quarter units of chemistry, which must include clinical chemistry OR analytical and biochemistry.
- 18 semester or equivalent quarter units of biology, which must include hematology, immunology, and medical microbiology.
- 3 semester or equivalent quarter units of physics (light and electricity)
All non-U.S. transcripts must be evaluated by "Current Members" of the
National Association of Credential Evaluation Services (NACES) or "Endorsed Members" of the
Association of International Credential Evaluators, Inc. (AICE). This allows LFS to determine if your education is equivalent to a U.S. college or university education. The evaluation service will send an evaluation of your educational institution and academic courses directly to LFS.
To obtain an application, instructions, and information, visit them on the web:
If you are an applicant whose education and training/experience is from a non-U.S. school, college, university, or clinical laboratory, please make sure that your name is printed in English on all your transcripts and supporting documents and that it matches your name on the application.
CLS Training Programs (PDF)
LFS Approved Certification Examinations (PDF)
Statutes and regulations
California Business and Professions Code, Clinical Laboratory Technology, Licensing
California Code of Regulations, Title 17, Section 1032, Clinical Laboratory Scientist (generalist)
The requirements listed may not be comprehensive.
How to Apply
Visit the LFS online application website to
create an account and submit an application.
*You will need a Visa or MasterCard to pay your application fee online.
log in to check the status of your application and choosing the "Submitted" link on the left side of the screen.
Note: Transcripts must be original documents bearing the school, college, or university registrar’s seal, and must be sent directly to LFS from the office of the college or university registrar. Request to have your transcripts mailed to:
Laboratory Field Services - CLS Trainee Program
850 Marina Bay Parkway, Bldg. P 1st Floor
Richmond, CA 94804
*Incomplete application packages may be abandoned 150 days after registration. All applicants whose applications have been abandoned who wish to re-apply must pay a new non-refundable application fee.
Documents you may need for your application
For additional information you may contact