 Moreover, while the student is on post-completion Optional Practical Training, the student can only engage in the type of employment permitted by that Optional Practical training, and therefore cannot engage in arbitrary on-campus work.An F-1 student who experiences severe economic hardship due to unforeseen circumstances beyond the student's control, the student may request employment authorization to work off-campus under certain circumstances.Examples of unforeseen circumstances that may be eligible include loss of financial aid due to no fault of the student, loss of on-campus employment through no fault of the student, substantial fluctuations in currency value or exchange rate, inordinate increases in tuition or living costs, unexpected changes in the financial condition of the student's source of support, and substantial unexpected medical bills.