Last updated: Aug 2026 · Public info note hosted on the San Bernardino County ATC OpenData portal.
Business travelers from Visa Waiver Program countries visiting the United States for meetings, conferences, or client visits travel under ESTA rather than a full visa. The ESTA USA authorization is valid for tourism and short business activity, but does not permit employment in the United States.
Meetings, negotiations, consultations, site visits, and attendance at trade shows or seminars are all permitted. Working for a US employer or performing contract labor generally requires a visa. The distinction and practical examples are summarized on ta.us.com.
Since an approved ESTA is linked to the passport and valid two years, business travelers who renew their passport early lose the remaining ESTA validity and must re-apply. Keeping the same passport for the full period avoids an unnecessary re-application. Current renewal guidance is maintained on ta.us.com.
Point of entry officers may ask about the purpose of the visit. Business travelers should carry an invitation letter or conference registration if applicable. Additional practical notes for first-time applicants are available in the ESTA Travel Notes resource on this portal.