A LOMA is typically ordered if it is uncertain if a home lies within a flood zone. A home or structure shown to lie inside the flood zone area according to FEMA mapping, may be proved to be above the 100 year elevation upon a field survey. When this is the case, a professional surveyor fills out a LOMA form with results from the field survey, certifying that the structure is not in the floodplain. This form can then be submitted to FEMA for the removal of that structure from the “flood zone” designation. Once this form is approved by FEMA, flood insurance is no longer necessary, and FEMA amends their maps to record the results of the LOMA.