Did you know that one out of eight public schools does not have a single 504 plan? According to a 2018 analysis by Professor Perry Zirkel of Lehigh University, together with the Civil Rights Data Collection (CRDC) on 504 plans, there is a “dramatically significant pattern of suspected under-identification.” This means several eligible students with disabilities do not have a 504 plan and may not have access to special education services, related services, and accommodations.