Update README.md

README.md

@@ -31,5 +31,5 @@ Anyone who needs access to the Platform One IL2 or IL4 environment but does not
 
 ## For IL4 Requests only
 
-- To expedite your IL4 request, you can have your security manager fill out PART III on the 2875
+- Your security manager MUST fill out PART III on the 2875.
 - Remember to indicate that you have a CAC application in progress, if true, on the Justification portion