diff --git a/.github/workflows/haskell-ci.yml b/.github/workflows/haskell-ci.yml
index 4052ac74..b25be2c9 100644
--- a/.github/workflows/haskell-ci.yml
+++ b/.github/workflows/haskell-ci.yml
@@ -165,7 +165,7 @@ jobs:
         uses: actions/checkout@v6
         with:
           repository: tweag/CIPs
-          ref: 5a4f49835b01695583830e01e2dfd11e9e582efc
+          ref: c92a3b5db78268e7f0db5f24c80ed6f49cf4b149
           path: cips
       - name: set env for reference CDDL
         run: |
diff --git a/flake.lock b/flake.lock
index bd5fde29..06ea2a99 100644
--- a/flake.lock
+++ b/flake.lock
@@ -69,17 +69,17 @@
     "cips": {
       "flake": false,
       "locked": {
-        "lastModified": 1774517331,
-        "narHash": "sha256-Iu6jgcoa/WZcruKaym/3Y5/1awx53eKgvI0l6/+fMIQ=",
+        "lastModified": 1776254122,
+        "narHash": "sha256-MmXsGDMGnZayYZEt40Y5a54Pis31plBQt2/hbdUTaos=",
         "owner": "tweag",
         "repo": "CIPs",
-        "rev": "5a4f49835b01695583830e01e2dfd11e9e582efc",
+        "rev": "c92a3b5db78268e7f0db5f24c80ed6f49cf4b149",
         "type": "github"
       },
       "original": {
         "owner": "tweag",
         "repo": "CIPs",
-        "rev": "5a4f49835b01695583830e01e2dfd11e9e582efc",
+        "rev": "c92a3b5db78268e7f0db5f24c80ed6f49cf4b149",
         "type": "github"
       }
     },
diff --git a/flake.nix b/flake.nix
index 59874068..ab2381f8 100644
--- a/flake.nix
+++ b/flake.nix
@@ -18,7 +18,7 @@
     inputs.nixpkgs.follows = "nixpkgs";
   };
   inputs.cips = {
-    url = "github:tweag/CIPs?rev=5a4f49835b01695583830e01e2dfd11e9e582efc";
+    url = "github:tweag/CIPs?rev=c92a3b5db78268e7f0db5f24c80ed6f49cf4b149";
     flake = false;
   };
   outputs = { self, nixpkgs, flake-utils, haskellNix, git-hooks, treefmt-nix
diff --git a/scls-cardano/cddl-src/Cardano/SCLS/CDDL.hs b/scls-cardano/cddl-src/Cardano/SCLS/CDDL.hs
index d8ccbcc3..26348362 100644
--- a/scls-cardano/cddl-src/Cardano/SCLS/CDDL.hs
+++ b/scls-cardano/cddl-src/Cardano/SCLS/CDDL.hs
@@ -9,6 +9,7 @@ module Cardano.SCLS.CDDL (
 ) where
 
 import Cardano.SCLS.Namespace.Blocks qualified as Blocks
+import Cardano.SCLS.Namespace.EntitiesAccounts qualified as EntitiesAccounts
 import Cardano.SCLS.Namespace.EntitiesCommittee qualified as EntitiesCommittee
 import Cardano.SCLS.Namespace.GovCommittee qualified as GovCommittee
 import Cardano.SCLS.Namespace.GovConstitution qualified as GovConstitution
@@ -52,6 +53,9 @@ instance KnownSpec "snapshots/go/v0" where
 instance KnownSpec "nonces/v0" where
   namespaceSpec _ = mkDefinition Nonces.record_entry
 
+instance KnownSpec "entities/accounts/v0" where
+  namespaceSpec _ = mkDefinition EntitiesAccounts.record_entry
+
 instance KnownSpec "entities/committee/v0" where
   namespaceSpec _ = mkDefinition EntitiesCommittee.record_entry
 
@@ -82,6 +86,7 @@ knownNamespaces =
   , mkNamespaceSymbol @"snapshots/set/v0"
   , mkNamespaceSymbol @"snapshots/go/v0"
   , mkNamespaceSymbol @"nonces/v0"
+  , mkNamespaceSymbol @"entities/accounts/v0"
   , mkNamespaceSymbol @"entities/committee/v0"
   , mkNamespaceSymbol @"gov/committee/v0"
   , mkNamespaceSymbol @"gov/constitution/v0"
@@ -95,6 +100,7 @@ type instance Spec.NamespaceKeySize "nonces/v0" = 1 -- Just zero
 type instance Spec.NamespaceKeySize "snapshots/mark/v0" = 31 -- 1 byte for hash type, 29 bytes for key hash (including 1-byte discriminator/padding; cred 29, key 28+1), 1 byte for value type
 type instance Spec.NamespaceKeySize "snapshots/set/v0" = 31 -- 1 byte for hash type, 29 bytes for key hash (including 1-byte discriminator/padding; cred 29, key 28+1), 1 byte for value type
 type instance Spec.NamespaceKeySize "snapshots/go/v0" = 31 -- 1 byte for hash type, 29 bytes for key hash (including 1-byte discriminator/padding; cred 29, key 28+1), 1 byte for value type
+type instance Spec.NamespaceKeySize "entities/accounts/v0" = 29 -- 1 byte for tag, 28 bytes for hash
 type instance Spec.NamespaceKeySize "entities/committee/v0" = 8
 type instance Spec.NamespaceKeySize "gov/committee/v0" = 8
 type instance Spec.NamespaceKeySize "gov/constitution/v0" = 8
diff --git a/scls-cardano/cddl-src/Cardano/SCLS/Namespace/EntitiesAccounts.hs b/scls-cardano/cddl-src/Cardano/SCLS/Namespace/EntitiesAccounts.hs
new file mode 100644
index 00000000..866a950d
--- /dev/null
+++ b/scls-cardano/cddl-src/Cardano/SCLS/Namespace/EntitiesAccounts.hs
@@ -0,0 +1,63 @@
+{-# LANGUAGE ImportQualifiedPost #-}
+{-# LANGUAGE OverloadedLists #-}
+{-# LANGUAGE OverloadedStrings #-}
+{-# LANGUAGE QuasiQuotes #-}
+{-# LANGUAGE TypeApplications #-}
+{-# LANGUAGE NoImplicitPrelude #-}
+{-# OPTIONS_GHC -Wno-unrecognised-pragmas #-}
+
+{-# HLINT ignore "Use camelCase" #-}
+module Cardano.SCLS.Namespace.EntitiesAccounts where
+
+import Cardano.SCLS.Common
+import Codec.CBOR.Cuddle.Huddle
+import Data.Function (($))
+import Text.Heredoc (str)
+
+record_entry :: Rule
+record_entry =
+  comment
+    [str| The key for the namespace
+        |
+        | ```
+        | meta:
+        |   endian: be
+        |
+        | seq:
+        |   - id: key
+        |     type: credential
+        |
+        | types:
+        |   credential:
+        |     seq:
+        |       - id: tag
+        |         size: 1
+        |       - id: hash
+        |         size: 28
+        | ```
+        |]
+    $ "record_entry" =:= account_state
+
+account_state :: Rule
+account_state =
+  "account_state"
+    =:= mp
+      [ "balance" ==> coin
+      , "deposit" ==> coin
+      , "drep_delegation" ==> drep / VNil
+      , "stake_pool_delegation" ==> pool_keyhash / VNil
+      ]
+
+drep :: Rule
+drep =
+  comment
+    [str| 0 - key hash
+              | 1 - script hash
+              | 2 - always abstain
+              | 3 - always no confidence
+        |]
+    $ "drep"
+      =:= arr [0, a keyhash28]
+      / arr [1, a script_hash]
+      / arr [2]
+      / arr [3]
diff --git a/scls-cardano/scls-cardano.cabal b/scls-cardano/scls-cardano.cabal
index a997368a..4e66e6d4 100644
--- a/scls-cardano/scls-cardano.cabal
+++ b/scls-cardano/scls-cardano.cabal
@@ -31,6 +31,7 @@ library
   other-modules:
     Cardano.SCLS.Common
     Cardano.SCLS.Namespace.Blocks
+    Cardano.SCLS.Namespace.EntitiesAccounts
     Cardano.SCLS.Namespace.EntitiesCommittee
     Cardano.SCLS.Namespace.GovCommittee
     Cardano.SCLS.Namespace.GovConstitution
diff --git a/scls-cardano/test/Reference.hs b/scls-cardano/test/Reference.hs
index 8822c48c..dd1b4d73 100644
--- a/scls-cardano/test/Reference.hs
+++ b/scls-cardano/test/Reference.hs
@@ -69,6 +69,7 @@ allReferenceCDDLs =
   , ("snapshots/set/v0", "snapshots_set_v0.cddl")
   , ("snapshots/go/v0", "snapshots_go_v0.cddl")
   , ("nonces/v0", "nonces_v0.cddl")
+  , ("entities/accounts/v0", "entities_accounts_v0.cddl")
   , ("entities/committee/v0", "entities_committee_v0.cddl")
   , ("gov/committee/v0", "gov_committee_v0.cddl")
   , ("gov/constitution/v0", "gov_constitution_v0.cddl")
diff --git a/scls-cardano/testlib/Cardano/SCLS/Testlib.hs b/scls-cardano/testlib/Cardano/SCLS/Testlib.hs
index 42217e0a..401f856a 100644
--- a/scls-cardano/testlib/Cardano/SCLS/Testlib.hs
+++ b/scls-cardano/testlib/Cardano/SCLS/Testlib.hs
@@ -55,6 +55,7 @@ testAllNS ::
   , ConstrNS "snapshots/go/v0"
   , ConstrNS "snapshots/mark/v0"
   , ConstrNS "snapshots/set/v0"
+  , ConstrNS "entities/accounts/v0"
   , ConstrNS "entities/committee/v0"
   , ConstrNS "gov/committee/v0"
   , ConstrNS "gov/constitution/v0"
@@ -68,6 +69,7 @@ testAllNS = describe "scls/conformance" $ do
   testNS @"snapshots/go/v0"
   testNS @"snapshots/mark/v0"
   testNS @"snapshots/set/v0"
+  testNS @"entities/accounts/v0"
   testNS @"entities/committee/v0"
   testNS @"gov/committee/v0"
   testNS @"gov/constitution/v0"