Guidelines for Establishing Effective Dates for Letters of Map Revision

Main Content

Suffix Descriptions: 
D: Decreases
A: Base Flood Elevation (BFE), base flood depth, Special Flood Hazard Area (SFHA), Zone Designation, and/or Floodway Change, Appeals Period Required
I: Increases
C: Compliant Ordinances
 

Revision Type

Letter Type

Property Owners Notification Required?

Status of Community Ordinances

Effective Date

BFE, base flood depth, SFHA, and/or floodway decreases only; and/or SFHA zone designation change to shaded or unshaded Zone X

102-D-A

No

Compliant

90-day appeal period required; Effective after 120 days

Increase in one or any combination of the following:
 

  • BFEs or base flood depths

  • SFHAs

  • Floodways

Or any SFHA zone designation change excluding a change to shaded or unshaded Zone X

102-I-A-C

Yes

Compliant

90-day appeal period required; Effective after 120 days

Increase in one or any combination of the following:
 

  • BFEs or base flood depths

  • SFHA

  • Floodway

Or any SFHA zone designation change excluding a change to shaded or unshaded Zone X

102-I-A

Yes

Non-Compliant

90-day appeal period required; Effective after six month compliance period

Changes to any other information besides flood hazard data (e.g. base map features); Reissuance of cases issued prior to December 1, 2011.

102-D

No

N/A

Effective date sent

Notes:

  1. A "Non Compliant Ordinance" is one where the community ordinance does not contain the words "and any subsequent revisions" when referring to map changes. If the community ordinance refers to a specific map date and does not included the "and any subsequent revisions" text, it is non-compliant. Request a copy of the community floodplain ordinance to verify compliance.

    A community’s ordinance is also considered non-compliant if the ordinance does not meet the minimum level of 60.3 regulations for the flood zones shown on the FIRM.
     
  2. Affected property owner notification is required for all cases with any increase in BFE, base flood depth, SFHA boundary or zone designation, or floodway. Written evidence of notification must be supplied.

    Property owner acceptance of changes is no longer required by FEMA for LOMR requests effective as of December 1, 2011.
Last Updated: 
10/10/2012 - 15:28