Once a preliminary FIRM is produced and distributed, the review and appeal period can extend for one year or more. After a standard review and comment period, a meeting is scheduled by FEMA’s Regional Office staff and community officials. Unless significant technical concerns are raised before or during that meeting, FEMA will then initiate a statutory 90-day appeal period whenever new or revised flood hazard information is proposed. During this period, community officials and property owners have the opportunity to submit appeals and comments regarding the BFEs shown on the preliminary FIRM or in the accompanying FIS report. When the 90 day period is complete and all appeals have been resolved, a six-month “adoption/compliance” period begins. During this time, the community enacts any new or modified floodplain management ordinances required for participation in the National Flood Insurance Program.