Final answer:
Under Section 504, reevaluations are required when needed or when there is a significant change in the student's condition.
Step-by-step explanation:
The policy on reevaluations under Section 504 is that they are required when needed or when there is a significant change in the student's condition. Reevaluations are not mandated at specific time intervals like annual, every two years, or every three years. Instead, they are conducted on an as-needed basis to ensure that the student's needs are being met and appropriate accommodations are in place.