4.4 Flood Insurance (NFIP) & Coastal Property Risks

4.4 Flood Insurance (NFIP) & Coastal Property Risks

Standard property insurance policies (Dwelling, Homeowners, Commercial Property) strictly exclude the perils of flood, surface water, and specific coastal wind risks. Flood is insured through the National Flood Insurance Program (NFIP); ocean and inland marine exposures are addressed in Sections 4.7 and 4.8; and coastal wind/hail is addressed through state residual market mechanisms.

---

National Flood Insurance Program (NFIP)

Created by Congress under the National Flood Insurance Act of 1968, the NFIP provides federally backed flood insurance to property owners in communities that adopt approved floodplain management ordinances.

Statutory Definition of Flood

To qualify for coverage under an NFIP Standard Flood Insurance Policy (SFIP), a loss must meet the statutory definition of a flood:

Statutory Flood Definition: A general and temporary condition of partial or complete inundation of two or more acres of normally dry land area OR of two or more properties (at least one of which is the insured’s property) from:

1. Overflow of inland or tidal waters;
2. Unusual and rapid accumulation or runoff of surface waters from any source; or
3. Mudflow (a river of liquid mud on dry land surfaces).

Note: Water backup from sewers/drains or sump pump failure is covered ONLY if the backup is directly caused by a general surface flood in the area.

Program Structure: WYO vs. Direct Policies

• Write-Your-Own (WYO) Program: Private insurance companies enter agreements with FEMA to issue and service standard NFIP flood policies under their own corporate names. The private insurer receives an administrative fee, but the federal government retains 100% financial liability and sets all rates, rules, and coverage terms.
• Direct NFIP Policies: Issued directly by FEMA through its direct servicing agent for properties not written through WYO carriers.

Program Coverage Limits

Standard 30-Day Waiting Period & Exceptions

To prevent property owners from purchasing coverage only when storms approach, NFIP policies enforce a mandatory 30-day waiting period from the date of application and premium payment before coverage becomes effective.

• Mortgage Loan Exception: The 30-day waiting period is waived when flood insurance is purchased in connection with the initial making, increasing, extending, or renewing of a mortgage loan.
• Map Revision Exception: A reduced 1-day waiting period applies during the first 13 months following the initial issuance of a revised Flood Insurance Rate Map (FIRM).

Major Property Exclusions & Basement Restrictions

• General Exclusions: Land, lawns, trees, shrubs, unharvested crops, fences, retaining walls, seawalls, piers, docks, driveways, outdoor swimming pools, and motor vehicles.
• Basement Exclusions: In below-grade basement areas, finished items (drywall, paneling, carpeting, finished ceilings, furniture, and personal contents) are strictly excluded. Basement coverage is restricted to essential building utility equipment (furnaces, water heaters, heat pumps, air conditioners, electrical junction boxes, sump pumps, and fuel tanks).

---

Coastal Property & Hurricane Deductible Rules in South Carolina

South Carolina’s extensive coastal region exposes property insurers to severe hurricane hazards. State statutes and South Carolina Department of Insurance (SCDOI) regulations enforce specific rules governing coastal deductibles and residual market availability.

South Carolina Coastal Hurricane Deductible Rules

Insurers writing property policies in South Carolina coastal counties (e.g., Beaufort, Charleston, Colleton, Horry, Jasper, Georgetown) may include mandatory percentage deductibles (typically 2%, 5%, or 10% of Coverage A) for losses caused by hurricanes or windstorms.

Example Calculation:
Coverage A Limit = $400,000
Hurricane Deductible = 5%
Deductible Amount = $400,000 * 5% = $20,000

Statutory Trigger Event in South Carolina

Under South Carolina regulatory standards, a special hurricane percentage deductible can ONLY be triggered when:

1. The National Weather Service (NWS) officially issues a Hurricane Warning for any portion of South Carolina.
2. The hurricane deductible applies starting from the issuance of the hurricane warning until 24 to 48 hours after the hurricane warning is officially terminated by the NWS.
3. If wind damage is caused by a tropical storm, severe thunderstorm, or straight-line winds without an active NWS Hurricane Warning, the standard policy flat deductible applies instead of the higher percentage hurricane deductible.

South Carolina Wind and Hail Underwriting Association (SCWind / Beach Plan)

Created by state statute (S.C. Code Title 38 Chapter 75), the SCWind (Beach Plan) serves as South Carolina’s residual market mechanism. It provides essential windstorm and hail insurance for property owners in designated coastal beach areas who are unable to procure coverage in the voluntary insurance market due to extreme hurricane exposure.