# 8.2. Signature Dates Each signature has a valid start and end date. The stored signature will only be viewed on documentation where the document date falls between the signature's valid start and end date. FYI: When adding the initial signature use a valid end that extends extremely far into the future, to ensure that future documents are covered. If an updated signature is added, edit the valid end date of the previous signature to end the day before the updated signature becomes effective.