With one easy line, cross out your error, such as a misspelled name, incorrect date, or incorrect numerical check amount, with a blue or black pen. Correct the error and carefully write the correction above it. Avoid blotting out the error—just one solid line will suffice. If possible, have the original document available when you make the correction. There are three types of corrections that may be written over an improperly signed document: full, partial, and complete. A full correction replaces the entire signature with a new one. Use this type of correction if the signer's name is spelled incorrectly or if their signature doesn't match the other information on the document. A partial correction only covers part of the signature or some of the other information written below it. For example, if only the month and year were corrected, then the signature is still valid but it was signed by someone else in that month and year. A complete correction erases all evidence of the previous signing process so that no trace of it remains. This type of correction should be used if there is doubt about who signed a document, especially if they claim not to remember doing so. After making the correction, be sure to re-sign the document in accordance with state law requirements (such as using legible ink). The person who made the correction can then also sign it again for official record keeping purposes.