On my husband's IMM 0008, upon proofreading I have found an error ( I checked NO instead of YES), this document has been validated. After I make the correction do I have to validate again? Can I make the change with white out and just use black pen to check the yes box?? On the same document there are TWO validate buttons, one at the bottom of page 3, and the other at the END under the consent and declaration, do I validate this document twice?? Thanks.