Environmental Rules in Chelsea, MA (2026)
1 verified environmental rules for Chelsea, Massachusetts, sourced directly from the municipal code and official government pages.
Verified from official government sources
Flood Zones
Chelsea has significant flood risk: 15% of the city is currently in SFHA (Zone AE near Chelsea Creek and Island End River); projected to reach 34% by 2081. FEMA revised Flood Insurance Rate Maps effective March 16, 2016. NFIP participation required; flood insurance mandatory for federally backed mortgages in SFHA.
Chelsea Flood Zone Regulations
Heavy RestrictionsLooking for Suffolk County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Chelsea city rules.
Environmental Rules in Suffolk County →