For purposes of this bylaw, the Town of Plympton is hereby divided into the following types of use districts:

Overlay districts shall be considered to be superimposed over any other district established by this bylaw. Land in such overlay districts may be used for any purpose permitted in the underlying district, subject to the special conditions and requirements of the overlay district.

The Floodplain and Watershed Protection District is an overlay district which is shown on the Town of Plympton Zoning Map. Uses and structures in the Floodplain and Watershed Protection District are subject to regulations as provided in § 300-8.1 of this bylaw.

The Historic District at Harrub's Corner is an overlay district which is shown on the Town of Plympton Zoning Map. Any uses and structures in the Historic District shall be subject to regulations as provided in § 300-8.2 of this bylaw.

The Groundwater Protection Districts are overlay districts shown on a supplement to the Town of Plympton Zoning Map. Uses and structures in the Groundwater Protection Districts are subject to regulations as provided in § 300-8.3 of this bylaw.

The aforesaid districts are shown on a plan of Vautrinot and Webby Co. dated 1980, as most recently revised. Said plan shall be the Zoning Map of the Town of Plympton.