Here is a brief roundup of some resources which may be helpful to you in understanding both IEPs and 504s, and their differences... as well as providing tips and advice on enforcing them:
1)
Wrightslaw website, including
- the book
From Emotions To Advocacy (FETA),
- webpage "
Key Differences between IDEA and 504", from their website's section called "Ask the Advocate",
- webpage "
IEP development Pop-up",
- webpage "
IEP special factors Pop-up",
- webpage "
IEP disputes Pop-up".
2)
Understood.org website, including
- "
The Difference between IEPs and 504 Plans",
- search results for IEP,
- search results for 504.
3)
Twice Exceptional (2e) Newsletter, now
2e News.