It can be relevant when the evidence shows knowledge of foreign operating conditions of significant value to the organisation’s U.S. operations. General market familiarity, nationality or language ability alone does not establish the required knowledge.
Show the business application
Explain what the employee learned through actual work, how it relates to the company’s products or processes and which U.S. duties need it. Support the appropriate special or advanced comparison with examples rather than broad regional claims.
The employer must also establish the qualifying relationship and continuous qualifying year abroad. Claims of this kind are settled by operational records rather than by testimonial letters, so decide early which document carries each point. Knowledge of foreign operating conditions becomes provable when a record shows the condition itself, the company’s response to it, and the employee’s hand in that response — a specification revised for a different regulatory environment, a procedure rewritten after an installation failure, or a validation protocol adapted to local supply constraints.
Each should be dated within or before the qualifying employment. Hypothetical example: a laboratory-instrument servicing group establishes a technician’s advanced knowledge through calibration deviations he authored for instruments running on unstable power supplies, records that also fix the year in which he did it. Qualifying relationship and the continuous year still need separate proof; neither is inferable from the technical file.