; and (ii) devotes a majority of time at work to exercising the authority under clause (i). (B) State law If the term supervisory employee , or a substantially equivalent term, has a substantially equivalent meaning under applicable State law to the meaning under subparagraph (A) on the date of the enactment of this Act, such term, or substantially equivalent term, and meaning under such applicable State law shall apply with respect to the term supervisory employee under this Act for public employees and public employers in such State. 4. Determination of rights and responsibilities (a) Determination (1) In general Not later than 180 days after the date of enactment of this Act, the Authority shall make a determination as to whether a State substantially provides for the rights and responsibilities described in subsection (b). (2) Consideration of additional opinions In making the determination described in paragraph (1), the Authority shall consider the opinions of affected public employees, labor organizations, and public employers. In the case where the Authority is notified by an affected public employer and labor organization that both parties agree that the law applicable to such employer and labor organization substantially provides for the rights and responsibilities described in subsection (b), the Authority shall give such agreement weight to the maximum extent practicable in making the Authority's determination described in paragraph (1). (3) Limited criteria In making the determination described in paragraph (1), the Authority shall be limited to the application of the criteria described in subsection (b) and shall not use any additional criteria. (4) Subsequent determinations (A) In general A determination made pursuant to paragraph (1) shall remain in effect unless and until the Authority issues a subsequent determination, in accordance with the procedures set forth in subparagraph (B). (B) Procedures for subsequent determinations Upon establishing that a material change in State law or its