The specialist’s customer access does not authorize the spouse to provide services. Work eligibility depends on the spouse’s own valid L status and appropriate evidence, rather than the principal’s badge or customer introduction.
Explain what the spouse would do during the visit
A shared itinerary could involve attending a social event, accompanying a traveller or helping deliver the customer project. Identify the actual activity instead of letting the customer’s access approval stand for an immigration assessment. L-2 is available to a qualifying spouse or unmarried child under 21, but only the eligible spouse receives the incident-to-status work benefit; dependent children do not. Keep the customer’s security requirements and the spouse’s status documents as separate checks.
Find out which category the spouse's occupation falls into in the specific state before the household budgets that income, and start any licensing application early, since it will run on its own timetable regardless of the immigration file. A household planning around two incomes should understand that the second one carries the risk attached to the first, which is an argument for raising any change in the principal's employment promptly rather than treating it as an internal matter.