Environmental Rules in Alaska (2026)
15 rules on the books across Alaska, 3 cities and counties. Select a rule to read the full details.
Severity: Few Restrictions · Light Restrictions · Some Restrictions · Significant Restrictions · Heavy Restrictions
Stormwater Management
Requirements for managing rainwater runoff on your property, including retention basins, permeable surfaces, and drainage plans.
Alaska: statewide
StatewideHeavy RestrictionsThe Alaska Department of Environmental Conservation administers the Alaska Pollutant Discharge Elimination System under…
Read full rule →Anchorage
Some RestrictionsAnchorage charges a stormwater plan review fee before approving buildings, structures, fill, excavation, or grading…
Read full rule →Kenai Peninsula Borough
Light RestrictionsThe Kenai Peninsula Borough outside the cities has no general private-property stormwater ordinance; its drainage rule…
Read full rule →Erosion Control
Rules to prevent soil erosion during construction and landscaping, including required sediment barriers and ground cover standards.
Anchorage
Some RestrictionsAnchorage requires an approved storm water treatment plan with erosion and sediment controls before any land clearing…
Read full rule →Kenai Peninsula Borough
Some RestrictionsOutside Kenai Peninsula Borough's cities, erosion and storm water control are enforced only inside the Anadromous…
Read full rule →Coastal Development
Building restrictions near coastlines, including setbacks from the water, dune protection rules, and coastal commission permits.
Flood Zones
Building requirements for properties in FEMA flood zones, including elevation standards, flood insurance mandates, and construction limits.
Anchorage
Heavy RestrictionsAnchorage participates in FEMA NFIP. Known flood areas include Turnagain along Cook Inlet, Ship Creek downtown, and…
Read full rule →Kenai Peninsula Borough
Some RestrictionsOutside the cities, the Kenai Peninsula Borough regulates construction in FEMA-mapped flood hazard areas under KPB…
Read full rule →Matanuska Susitna Borough
Some RestrictionsAny construction, fill, or development within a mapped special flood hazard area of the Matanuska-Susitna Borough…
Read full rule →Boat Dock Permits
Permits required to build or modify boat docks, lifts, and davits on waterfront properties, including size limits, setbacks, and environmental reviews.
Defensible Space
Mandated vegetation clearance zones around homes in fire hazard zones, including the 100-ft Zone 0/1/2 model used by California and other wildfire-prone states.
Vehicle Idling Restrictions
Limits on how long heavy-duty vehicles, buses, and passenger cars may idle, including bans near schools and residential areas.
Flood Elevation Requirements
FEMA NFIP minimum base flood elevation (BFE) construction standards for properties in mapped flood zones, including freeboard requirements above BFE.
Anchorage
Some RestrictionsIn mapped flood hazard zones, Anchorage requires new and substantially improved homes to sit at least one foot above…
Read full rule →Kenai Peninsula Borough
Some RestrictionsOutside the cities, new construction in a Special Flood Hazard Area must be built to the borough's Flood Protection…
Read full rule →Matanuska Susitna Borough
Some RestrictionsWhere base flood elevation data exists, MSB § 17.29.170(A)(1)(a) requires new and substantially improved residential…
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