1. California CSLB requires covered construction contractors to be licensed. (Source: https://www.cslb.ca.gov/Contractors/Applicants/Contractors_License/Exam_Application/Before_Applying_For_License.aspx; verbatim: “All businesses or individuals who construct or alter any building, highway, road, parking facility, railroad, excavation, or other structure in California must be licensed”)
2. California CSLB identifies a paid employee exemption from contractor licensing in defined circumstances. (Source: https://www.cslb.ca.gov/Contractors/Applicants/Contractors_License/Exam_Application/Before_Applying_For_License.aspx; verbatim: “An employee who is paid wages, who does not usually work in an independently established business, and who does not have direction or control over the performance of work”)