LOMA (Letter of Map Amendment), LOMR (Letter of Map Revision), and Elevation Certificates are FEMA-related documents. LOMAs remove properties from high-risk flood zones if they are shown to be above the base flood elevation. LOMRs revise flood maps to reflect changes in flood risks. Elevation Certificates, prepared by surveyors, document a structure's elevation to determine flood insurance rates. These documents are essential for flood zone determinations, insurance, and regulatory compliance in flood-prone areas.