In the 2018 Standard Occupational Classification System, Solar Photovoltaic Installers have the specific SOC code 47-2231, within the Construction and Extraction Occupations major group.
Notes on verification
Confirmed by multiple independent sources including DOL-affiliated mynextmove.org and siccode.com, both verifying the SOC code number and its classification under Construction and Extraction Occupations, consistent with BLS.gov data.