(a) A security interest that is enforceable immediately before the effective date of the revision and would have priority over the rights of a person that becomes a lien creditor at that time is a perfected security interest under this chapter, as revised, if, on the effective date of the revision, the applicable requirements for enforceability and perfection under this chapter, as revised, are satisfied without further action.
(b) Except as otherwise provided in Section 9.705, if, immediately before the revision takes effect, a security interest is enforceable and would have priority over the rights of a person that becomes a lien creditor at that time, but the applicable requirements for enforceability or perfection under this chapter, as revised, are not satisfied when the revision takes effect, the security interest:
(1) is a perfected security interest until July 1, 2002;
(2) remains enforceable after June 30, 2002, only if the security interest becomes enforceable under Section 9.203, as revised, before July 1, 2002; and
(3) remains perfected after June 30, 2002, only if the applicable requirements for perfection under this chapter, as revised, are satisfied before July 1, 2002.