Mailed notice to individual landowners is not required under this subsection for any type of amendment to an existing local land use ordinance merely to conform that ordinance to the minimum timber harvesting guidelines required by Title 38, section 439-A, as those guidelines may be subsequently amended, or to conform any timber harvesting ordinance to the requirements of this section for conformity of definitions when the proposed amendments do not substantially change any previously established timber harvesting standards adopted pursuant to home rule authority.

The municipal officers shall prepare and file with the municipal clerk a written certificate indicating those landowners to whom the notice was mailed and at what addresses, when it was mailed, by whom it was mailed and from what location it was mailed.__The certificate constitutes prima facie evidence that notice was sent to those landowners named in the certificate.

Any action challenging the validity of the adoption or amendment of a municipal timber harvesting ordinance based on the municipality's alleged failure to comply with the landowner notice requirement must be brought in Superior Court within 90 days after the adoption of the ordinance or amendment.__The Superior Court may invalidate an ordinance or amendment only if the landowner demonstrates that the landowner was entitled to receive a notice under this section, that the municipality failed to send the notice as required, that the landowner had no knowledge of the proposed ordinance or amendment and that the landowner was materially harmed by that lack of knowledge.

D. The municipality municipal clerk shall notify the department of the time, place and date of the public hearing and provide the department with a copy of the