USCIS information for H-1B Specialty Occupations, DOD Cooperative Research and Development Project Workers, and Fashion Models:
https://www.uscis.gov/working-in-the-united-states/h-1b-specialty-occupations
US Department of Labor H-1B Program Details:
https://www.dol.gov/agencies/whd/immigration/h1b
American Immigration Council H-1B Fact Sheet:
https://www.americanimmigrationcouncil.org/research/h1b-visa-program-fact-sheet
USCIS Non-Immigrant Policy Manual: