Md. Code, Com. Law § 9-706

(a) The filing of an initial financing statement in the office specified in § 9-501 continues the effectiveness of a financing statement filed before this title takes effect if: (1) The filing of an initial financing statement in that office would be effective to perfect a security interest under this title; (2) The pre-effective-date financing statement was filed in an office in another state or another office in this State; and (3) The initial financing statement satisfies subsection (c). (b) The filing of an initial financing statement under subsection (a) continues the effectiveness of the pre-effective-date financing statement for the period in § 9-515 with respect to an initial financing statement. (c) To be effective for purposes of subsection (a), an initial financing statement must: (1) Satisfy the requirements of Subtitle 5 of this title for an initial financing statement; (2) Identify the pre-effective-date financing statement by indicating the office in which the financing statement was filed and providing the dates of filing and file numbers, if any, of the financing statement and of the most recent continuation statement filed with respect to the financing statement; and (3) Indicate that the pre-effective-date financing statement remains effective.