C4 visa (C-4-5) short-term employment, dispatch, machinery installation and maintenance, shipbuilding, industrial equipment manufacturing supervision, actors, performances, models, athletes

E6 Visa (E-6-1) - Movie Actors, Singers, Entertainers Invitation Required Documents and Employment Recommendation Issuance Procedure. Difference with C4 Visa

C-4 Visa Short-Term Employment (C-4-5) Types, Eligibility, Required Documents