Orders and directives heretofore in force, issued or promulgated by the public service commission, public utilities commission, or the department of transportation under authority of chapters 216A, 218, 219, and 221 remain and continue in force and effect until repealed, modified, or superseded by duly authorized orders or directives of the transportation regulation board. Rules adopted by the public service commission, public utilities commission or the department of transportation under authority of the following sections are transferred to the transportation regulation board and continue in force and effect until repealed, modified, or superseded by duly authorized rules of the transportation regulation board:

1. (1) section 218.041 except rules related to the form and manner of filing railroad rates, railroad accounting rules, and safety rules;
2. (2) section 219.40;
3. (3) rules relating to rates or tariffs, or the granting, limiting, or modifying of permits or certificates of convenience and necessity under section 221.031, subdivision 1;
4. (4) rules relating to the sale, assignment, pledge, or other transfer of a stock interest in a corporation holding authority to operate as a permit carrier as prescribed in section 221.151, subdivision 1, or a local cartage carrier under section 221.296, subdivision 8;
5. (5) rules relating to rates, charges, and practices under section 221.161, subdivision 4; and

6. (6) rules relating to rates, tariffs, or the granting, limiting, or modifying of permits under sections 221.121, 221.151, and 221.296 or certificates of convenience and necessity under section 221.071.

   The board shall review the transferred rules, orders, and directives and, when appropriate, develop and adopt new rules, orders, or directives within 18 months of July 1, 1985.