Each institution establishes its own policies on accepting occupational credit recommendations. In some cases, academic institutions will not accept any credit from your ACE occupation credit recommendations. In other cases, the level of the course may be too low. For example, ACE credit recommendations have four categories for the level of credit: vocational certificate, lower-division baccalaureate or associate degree (courses numbered 100–200; freshman and sophomore level), upper-division baccalaureate (courses numbered 300–400; junior and senior level), and graduate (courses numbered 500 and above). If your degree requires a 300-level course and the credit recommendation for the course you completed was for a lower level, those credits cannot be applied to your area of concentration. Lower-level courses often aren’t acceptable because they are basic or introductory in nature.