diff --git a/eras/conway/impl/testlib/Test/Cardano/Ledger/Conway/Imp.hs b/eras/conway/impl/testlib/Test/Cardano/Ledger/Conway/Imp.hs
index f3ffa9461bb..ba49713b141 100644
--- a/eras/conway/impl/testlib/Test/Cardano/Ledger/Conway/Imp.hs
+++ b/eras/conway/impl/testlib/Test/Cardano/Ledger/Conway/Imp.hs
@@ -74,7 +74,6 @@ conwayEraGenericSpec = do
 conwayEraSpecificSpec :: SpecWith (ImpInit (LedgerSpec ConwayEra))
 conwayEraSpecificSpec = do
   describe "Conway era specific Imp spec" $ do
-    describe "DELEG" Deleg.conwayEraSpecificSpec
     describe "UTXO" Utxo.conwayEraSpecificSpec
 
 instance EraSpecificSpec ConwayEra where
diff --git a/eras/conway/impl/testlib/Test/Cardano/Ledger/Conway/Imp/DelegSpec.hs b/eras/conway/impl/testlib/Test/Cardano/Ledger/Conway/Imp/DelegSpec.hs
index d7e7b4c482e..475701fde6f 100644
--- a/eras/conway/impl/testlib/Test/Cardano/Ledger/Conway/Imp/DelegSpec.hs
+++ b/eras/conway/impl/testlib/Test/Cardano/Ledger/Conway/Imp/DelegSpec.hs
@@ -10,7 +10,6 @@
 
 module Test.Cardano.Ledger.Conway.Imp.DelegSpec (
   spec,
-  conwayEraSpecificSpec,
 ) where
 
 import Cardano.Ledger.Address (RewardAccount (..))
@@ -169,13 +168,12 @@ spec = do
 
   describe "Delegate stake" $ do
     it "Delegate to unregistered pool" $ do
-      expectedDeposit <- getsNES $ nesEsL . curPParamsEpochStateL . ppKeyDepositL
-
       cred <- KeyHashObj <$> freshKeyHash
+      regTxCert <- genRegTxCert cred
       submitTx_ $
         mkBasicTx mkBasicTxBody
           & bodyTxL . certsTxBodyL
-            .~ [RegDepositTxCert cred expectedDeposit]
+            .~ [regTxCert]
 
       poolKh <- freshKeyHash
       submitFailingTx
@@ -529,29 +527,3 @@ spec = do
       accounts <- getsNES $ nesEsL . esLStateL . lsCertStateL . certDStateL . accountsL
       impAnn (show cred <> " expected to not have their vote delegated") $
         expectNothingExpr (lookupDRepDelegation cred accounts)
-
-conwayEraSpecificSpec :: SpecWith (ImpInit (LedgerSpec ConwayEra))
-conwayEraSpecificSpec = do
-  describe "Delegate stake" $ do
-    it "Register and delegate in the same transaction" $ do
-      cred1 <- KeyHashObj <$> freshKeyHash
-      regTxCert1 <- genRegTxCert cred1
-      poolKh <- freshKeyHash
-      registerPool poolKh
-      submitTx_ $
-        mkBasicTx mkBasicTxBody
-          & bodyTxL . certsTxBodyL
-            .~ [ regTxCert1
-               , DelegTxCert cred1 (DelegStake poolKh)
-               ]
-      expectDelegatedToPool cred1 poolKh
-
-      cred2 <- KeyHashObj <$> freshKeyHash
-      regTxCert2 <- genRegTxCert cred2
-      submitTx_ $
-        mkBasicTx mkBasicTxBody
-          & bodyTxL . certsTxBodyL
-            .~ [ regTxCert2
-               , DelegStakeTxCert cred2 poolKh -- using the pattern from Shelley
-               ]
-      expectDelegatedToPool cred2 poolKh
diff --git a/eras/shelley/impl/testlib/Test/Cardano/Ledger/Shelley/Imp.hs b/eras/shelley/impl/testlib/Test/Cardano/Ledger/Shelley/Imp.hs
index 7d4f84bff4b..a3e3ddfb2d7 100644
--- a/eras/shelley/impl/testlib/Test/Cardano/Ledger/Shelley/Imp.hs
+++ b/eras/shelley/impl/testlib/Test/Cardano/Ledger/Shelley/Imp.hs
@@ -50,5 +50,4 @@ shelleyEraSpecificSpec = do
       Deleg.shelleyEraSpecificSpec
 
 instance EraSpecificSpec ShelleyEra where
-  eraSpecificSpec =
-    describe "DELEG" Deleg.shelleyEraSpecificSpec
+  eraSpecificSpec = shelleyEraSpecificSpec
diff --git a/eras/shelley/impl/testlib/Test/Cardano/Ledger/Shelley/Imp/DelegSpec.hs b/eras/shelley/impl/testlib/Test/Cardano/Ledger/Shelley/Imp/DelegSpec.hs
index 62c359f087e..7d37a340c9a 100644
--- a/eras/shelley/impl/testlib/Test/Cardano/Ledger/Shelley/Imp/DelegSpec.hs
+++ b/eras/shelley/impl/testlib/Test/Cardano/Ledger/Shelley/Imp/DelegSpec.hs
@@ -204,13 +204,13 @@ spec = do
     it "Register and delegate in the same transaction" $ do
       poolKh <- freshKeyHash
       registerPool poolKh
-      freshKeyHash >>= \kh -> do
-        regTxCert <- genRegTxCert (KeyHashObj kh)
-        submitTx_ $
-          mkBasicTx mkBasicTxBody
-            & bodyTxL . certsTxBodyL
-              .~ [regTxCert, delegStakeTxCert (KeyHashObj kh) poolKh]
-        expectDelegatedToPool (KeyHashObj kh) poolKh
+      cred <- KeyHashObj <$> freshKeyHash
+      regTxCert <- genRegTxCert cred
+      submitTx_ $
+        mkBasicTx mkBasicTxBody
+          & bodyTxL . certsTxBodyL
+            .~ [regTxCert, delegStakeTxCert cred poolKh]
+      expectDelegatedToPool cred poolKh
 
     it "Delegate unregistered stake credentials" $ do
       cred <- KeyHashObj <$> freshKeyHash