diff --git a/codegen/smithy-aws-go-codegen/src/main/resources/software/amazon/smithy/aws/go/codegen/endpoints.json b/codegen/smithy-aws-go-codegen/src/main/resources/software/amazon/smithy/aws/go/codegen/endpoints.json
index 6cbfc2afd8c..da902e454b0 100644
--- a/codegen/smithy-aws-go-codegen/src/main/resources/software/amazon/smithy/aws/go/codegen/endpoints.json
+++ b/codegen/smithy-aws-go-codegen/src/main/resources/software/amazon/smithy/aws/go/codegen/endpoints.json
@@ -24447,10 +24447,33 @@
       },
       "elasticmapreduce" : {
         "endpoints" : {
+          "fips-us-iso-east-1" : {
+            "credentialScope" : {
+              "region" : "us-iso-east-1"
+            },
+            "deprecated" : true,
+            "hostname" : "elasticmapreduce.us-iso-east-1.c2s.ic.gov"
+          },
+          "fips-us-iso-west-1" : {
+            "credentialScope" : {
+              "region" : "us-iso-west-1"
+            },
+            "deprecated" : true,
+            "hostname" : "elasticmapreduce.us-iso-west-1.c2s.ic.gov"
+          },
           "us-iso-east-1" : {
-            "protocols" : [ "https" ]
+            "protocols" : [ "https" ],
+            "variants" : [ {
+              "hostname" : "elasticmapreduce.us-iso-east-1.c2s.ic.gov",
+              "tags" : [ "fips" ]
+            } ]
           },
-          "us-iso-west-1" : { }
+          "us-iso-west-1" : {
+            "variants" : [ {
+              "hostname" : "elasticmapreduce.us-iso-west-1.c2s.ic.gov",
+              "tags" : [ "fips" ]
+            } ]
+          }
         }
       },
       "es" : {
@@ -24987,7 +25010,19 @@
       },
       "elasticmapreduce" : {
         "endpoints" : {
-          "us-isob-east-1" : { }
+          "fips-us-isob-east-1" : {
+            "credentialScope" : {
+              "region" : "us-isob-east-1"
+            },
+            "deprecated" : true,
+            "hostname" : "elasticmapreduce.us-isob-east-1.sc2s.sgov.gov"
+          },
+          "us-isob-east-1" : {
+            "variants" : [ {
+              "hostname" : "elasticmapreduce.us-isob-east-1.sc2s.sgov.gov",
+              "tags" : [ "fips" ]
+            } ]
+          }
         }
       },
       "es" : {