The Scientific Assembly exists to serve the academic, scientific, and vocational interests of the members of NCSCLS, and consists of the following sections:
- Biochemistry, including Urinalysis
- Cytotechnology
- Education
- Hematology
- Histology
- Immunology/Immunohematology
- Industry
- Administration
- Microbiology
- Immunoassay
- Phlebotomy