20210415 07454800 1.0 TRUE Limit of Moderate Wave Action The S_LiMWA layer is used when a Limit of Moderate Wave Action (LiMWA, previously described as a Coastal Zone A boundary line) is delineated within the coastal floodplain. The spatial entities representing the LiMWA are lines. The line represents the limit of 1.5-foot or greater waves in a Coastal AE Zone. Only LiMWA features depicted on the FIRM are shown.