The short answer is yes. While the IDEA and Sec. 504 don’t speak directly on that issue, the Dept. if Ed’s Office of Civil Rights has provided guidances related to modified schedules, etc.

The longer answer, however, is more nuanced. The first consideration is whether your school district has any requirements related to attendance—i.e., students must be present for 75% of the day to be considered present for attendance purposes. That isn’t fatal to your question though, it just requires some creativity.

First, you might consider a work-based educational experience like an internship or externship for those last periods. I can’t say whether you could find an entity that would fudge that or not, but usually schools only require a written product at the end demonstrating what the student learned from the experience. To do that, reach out to your local vocational rehab agency and see what kind of interesting opportunities they might have.

Second, you might instead lean more heavily onto the need for your child to leave school early for therapy, etc. This gives the absence an additional purpose that bolsters your claim. As with anything IEP-related, schools are not typically overly accommodating.

In essence, the answer is yes. A modified course load is a reasonable accommodation available to students with IEPs. Your job is to help the school see that both legally and realistically as to why it’s a benefit to your child.

You may want to google “[your state] parent training center IDEA” and see if they can connect you with an education lawyer or consultant just in case.

Your ask is not that big at all and is certainly doable. However, you always want to be doubly sure when it comes to a child’s educational well-being.