Bill > HB671

This bill addresses on-site sewage disposal systems in climate vulnerable areas in Maryland, introducing several key provisions to protect against flooding and sea level rise. By January 1, 2026, counties with over 150,000 residents must develop plans to minimize flooding risks to existing sewage disposal systems and limit new system installations in areas designated as "Coast Smart Climate Ready Action Boundaries" or "Riverine Climate Ready Action Boundaries". Beginning July 1, 2026, the bill prohibits installing new on-site sewage disposal systems or replacing existing systems in these climate vulnerable areas, unless specific conditions are met. These conditions include using nitrogen removal technology, receiving departmental approval that considers climate resiliency, and paying an alternative compliance fee equivalent to the cost of connecting to a municipal wastewater facility. The bill also requires the Department of the Environment to adopt regulations for site evaluation and design requirements that minimize climate event impacts, such as prohibiting deep trench systems. Additionally, the legislation provides financial assistance mechanisms for low-income homeowners installing or replacing systems in these vulnerable areas, with fees collected being deposited into the Bay Restoration Fund to support future environmental initiatives.

Transportation and Infrastructure

https://mgaleg.maryland.gov/mgawebsite/Legislation/Details/HB0671?ys=2025RS