Also, in some states, the district has less than 45 school days to complete the eval when it is at the end of the school year. So I would echo spaghetti's advice to start the child find process now.
For instance, I've worked in a place where the district had 10 days to respond to a parent request with a consent to test, and then 30 days to complete testing, and 15 more days to hold the meeting. That's 55 school days from start to finish (if you sign all the paper work and turn it in immediately), which is just under 3 months. However, the timelines are somewhat compressed near the end of the school year. So a request sent in now could easily result in a mandated meeting in June of this school year. Other districts I've been in have kept limited staff over the summer, expressly to keep timelines moving for evals.