What the document says“Except as expressly provided otherwise, any reference to ``this Act'' contained in any division of this Act shall be treated as referring only to the provisions of that division.”
Section 3 sets a reading rule for the whole Act. A reference to this Act made inside a division is read as a reference to that division alone, unless the text expressly says otherwise. The Act is built from divisions that were separate appropriations bills, so each one keeps its own reach.
What the document actually says“Except as expressly provided otherwise, any reference to ``this Act'' contained in any division of this Act shall be treated as referring only to the provisions of that division.”
When a part of this law says this Act, it means just that part. It means the whole law only if the words say so.
This law is made of big blocks called divisions. Each block was once its own bill. So the words this Act inside a block point at the block.
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