(2) If the official plan of an upper-tier municipality comes into effect as mentioned in subsection (1) and any official plan or zoning by-law is not amended as required by that subsection within one year from the day the plan comes into effect as the official plan, the council of the upper-tier municipality may amend the official plan of the lower-tier municipality or zoning by-law, as the case may be, in the like manner and subject to the same requirements and procedures as the council that failed to make the amendment within the one-year period as required. 2002, c. 17, Sched. B, s. 7.