1. Subject to section 41-09-80, a person may add or delete collateral covered by, continue or terminate the effectiveness of, or, subject to subsection 5, otherwise amend the information provided in, a financing statement by filing an amendment that:
a. Identifies, by its file number, the initial financing statement to which the amendment relates; and b. If the amendment relates to an initial financing statement filed or recorded in a filing office described in subdivision a of subsection 1 of section 41-09-72, provides the information specified in subsection 2 of section 41-09-73.
2. Except as otherwise provided in section 41-09-86, the filing of an amendment does not extend the period of effectiveness of the financing statement.
3. A financing statement that is amended by an amendment that adds collateral is effective as to the added collateral only from the date of the filing of the amendment.
4. A financing statement that is amended by an amendment that adds a debtor is effective as to the added debtor only from the date of the filing of the amendment.
5. An amendment is ineffective to the extent it:
a. Purports to delete all debtors and fails to provide the name of a debtor to be covered by the financing statement; or b. Purports to delete all secured parties of record and fails to provide the name of a new secured party of record.