Reference § 320-921(A).
The Board may alter, supplement or change the district boundaries and the regulations contained in this Part in accordance with the requirements of § 62.23(7)(d)2, Wis. Stats., Ch. NR 117, Wis. Adm. Code, and the following:
A. 
A copy of each proposed text or map amendment shall be submitted to the appropriate office of the Department within five days of the submission of the proposed amendment to the Planning Commission.
B. 
All proposed text and map amendments to the shoreland-wetland zoning regulations shall be referred to the Planning Commission, and a public hearing shall be held after Class 2 notice as required by § 62.23(7)(d)2, Wis. Stats. The appropriate office of the Department shall be provided with written notice of the public hearing at least 10 days prior to such hearing.
C. 
In order to ensure that this Part will remain consistent with the shoreland protection objectives of § 281.31, Wis. Stats., the Board may not rezone a wetland in a shoreland-wetland zoning district, or any portion thereof, where the proposed rezoning may result in a significant adverse impact upon any of the following wetland functions [reference § 320-920(B)(6), § 320-920(C)(1)(b), § 320-920(E)(3)]:
(1) 
Storm- and floodwater storage capacity.
(2) 
Maintenance of dry-season stream flow or the discharge of groundwater to a wetland, the recharge of groundwater from a wetland to another area or the flow of groundwater through a wetland.
(3) 
Filtering or storage of sediments, nutrients, heavy metals or organic compounds that would otherwise drain into navigable waters.
(4) 
Shoreline protection against erosion.
(5) 
Fish spawning, breeding, nursery or feeding grounds.
(6) 
Wildlife habitat.
(7) 
Areas of special recreational, scenic or scientific interest, including scarce wetland types and habitat of endangered species.
D. 
Where the Department determines that a proposed rezoning may have a significant adverse impact upon any of the criteria listed in § 320-915C of this Part, the Department shall so notify Greenville of its determination either prior to or during the public hearing held on the proposed amendment.
E. 
The appropriate office of the Department shall be provided with:
(1) 
A copy of the recommendation and report, if any, of the Planning Commission on a proposed text or map amendment, within 10 days after the submission of those recommendations to the Board.
(2) 
Written notice of the action on the proposed text or map amendment within 10 days after the action is taken.
F. 
If the Department notifies the Planning Commission in writing that a proposed amendment may have a significant adverse impact upon any of the criteria listed in § 320-915C, of this Part, that proposed amendment, if approved by the Board, shall not become effective until more than 30 days have elapsed since written notice of the municipal approval was mailed to the Department. If, within the thirty-day period, the Department notifies the municipality that the Department intends to adopt a superseding shoreland-wetland zoning ordinance for Greenville as provided by §§ 62.231(6) and 61.351(6), Wis. Stats., the proposed amendment shall not become effective until the ordinance adoption procedure under § 62.231(6) or 61.351(6), Wis. Stats., is completed or otherwise terminated.