SB 189·MD·senate
Municipalities - Open Drainage Inlets - Inventory and Improvements (Mason's Law)
Signed into LawFiled Oct 21, 2025
Sponsor: Lewis Young
Latest Action
Approved by the Governor - Chapter 356
May 12, 2026
Summary
The law obligates every Maryland municipality to list all open drainage inlets by July 1 2027, create a safety‑based prioritization plan by April 1 2028, and install approved grating systems on those inlets. Costs are borne by the municipality but may be partially covered by matching funds from the state’s flood‑management grant program. The aim is to reduce debris blockages and improve public safety.
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