Any change in the boundaries of any district, which change would occur within a distance of 200 feet of the boundary of any other municipality; or

Any change in the regulations prescribed for any district any portion of which is located within 500 feet of such boundaries, then the township clerk shall transmit to the municipal clerk of such other municipality a copy of the official notice of the public hearing thereon not later than the day after such notice appears in the official newspaper of the township. Failure of the township clerk to give such notice to another municipality shall invalidate the procedure only if the proposed amendment is adopted.