diff --git a/src/registrar/models/domain.py b/src/registrar/models/domain.py
index 1aad4fef4..aea3deecd 100644
--- a/src/registrar/models/domain.py
+++ b/src/registrar/models/domain.py
@@ -523,32 +523,9 @@ class Domain(TimeStampedModel, DomainHelper):
                 else:
                     addDnssecdata["dsData"] = None
 
-        elif _dnssecdata and _dnssecdata.keyData is not None:
-            # initialize addDnssecdata and remDnssecdata for keyData
-            addDnssecdata["keyData"] = _dnssecdata.keyData
-
-            if oldDnssecdata and len(oldDnssecdata.keyData) > 0:
-                # if existing keyData not in new keyData, mark for removal
-                keyDataForRemoval = [
-                    keyData
-                    for keyData in oldDnssecdata.keyData
-                    if keyData not in _dnssecdata.keyData
-                ]
-                if len(keyDataForRemoval) > 0:
-                    remDnssecdata["keyData"] = keyDataForRemoval
-
-                # if new keyData not in existing keyData, mark for add
-                keyDataForAdd = [
-                    keyData
-                    for keyData in _dnssecdata.keyData
-                    if keyData not in oldDnssecdata.keyData
-                ]
-                if len(keyDataForAdd) > 0:
-                    addDnssecdata["keyData"] = keyDataForAdd
         else:
-            # there are no new dsData or keyData, remove all
+            # there are no new dsData, remove all dsData from existing
             remDnssecdata["dsData"] = getattr(oldDnssecdata, "dsData", None)
-            remDnssecdata["keyData"] = getattr(oldDnssecdata, "keyData", None)
 
         return addDnssecdata, remDnssecdata
 
@@ -558,12 +535,10 @@ class Domain(TimeStampedModel, DomainHelper):
         addParams = {
             "maxSigLife": _addDnssecdata.get("maxSigLife", None),
             "dsData": _addDnssecdata.get("dsData", None),
-            "keyData": _addDnssecdata.get("keyData", None),
         }
         remParams = {
             "maxSigLife": _remDnssecdata.get("maxSigLife", None),
             "remDsData": _remDnssecdata.get("dsData", None),
-            "remKeyData": _remDnssecdata.get("keyData", None),
         }
         addRequest = commands.UpdateDomain(name=self.name)
         addExtension = commands.UpdateDomainDNSSECExtension(**addParams)
@@ -575,15 +550,11 @@ class Domain(TimeStampedModel, DomainHelper):
             if (
                 "dsData" in _addDnssecdata
                 and _addDnssecdata["dsData"] is not None
-                or "keyData" in _addDnssecdata
-                and _addDnssecdata["keyData"] is not None
             ):
                 registry.send(addRequest, cleaned=True)
             if (
                 "dsData" in _remDnssecdata
                 and _remDnssecdata["dsData"] is not None
-                or "keyData" in _remDnssecdata
-                and _remDnssecdata["keyData"] is not None
             ):
                 registry.send(remRequest, cleaned=True)
         except RegistryError as e: