I recently read a Q & A and found the following sentence a bit weird.
Q: Where should I submit the documents required for filing under the regulation?
Should it be "Where should I submit the documents required of filing under the regulation?" ?
I agree that the sentence is a little oddly worded; but "required for" filing would be correct.
This is how I understand the sentence:
"Where should I submit the documents that, according to the regulation, need to be filed?"
All the best,