All State Policies: Mississippi

Who’s Responsible?

Below are short descriptions of relevant state agencies/departments by policy topic, followed by more information on specific policies.



Bolstering CWA Protections

Ordinary High Water Mark legislation (Miss. H.B. 594 (2021))


This Act amended the Coastal Wetlands Protection Act to define “ordinary high water mark” (OHWM) to mean “A mark on the shore determined by the Department staff, established by fluctuations in water level and indicated by physical and biological characteristics…” It also revised the definition of “coastal wetlands” to mean all publicly owned lands subject to the ebb and flow of the tide, which are below the ordinary high water mark, all publicly owned accretions above the ordinary high water mark and all publicly owned submerged water bottoms below the ordinary high water mark…”

More about this policy »

Drinking Water

No policies found.

Environmental Justice

No policies found.

Open Water Data

No policies found.