diff --git a/deployment/ccip/changeset/cs_rmn_curse_uncurse.go b/deployment/ccip/changeset/cs_rmn_curse_uncurse.go
index 0e2eaa8b843..e405ab20cd1 100644
--- a/deployment/ccip/changeset/cs_rmn_curse_uncurse.go
+++ b/deployment/ccip/changeset/cs_rmn_curse_uncurse.go
@@ -7,26 +7,27 @@ import (
 	"github.com/smartcontractkit/chainlink/deployment"
 )
 
-const (
-	GLOBAL_CURSE_SUBJECT = 0
-)
+func GlobalCurseSubject() Subject {
+	return Subject{0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01}
+}
 
 type RMNCurseAction struct {
 	ChainSelector  uint64
-	SubjectToCurse uint64
+	SubjectToCurse Subject
 }
 
 type CurseAction func(e deployment.Environment) []RMNCurseAction
 
 type RMNCurseConfig struct {
-	HomeChainSelector uint64
-	MCMS              *MCMSConfig
-	CurseActions      []CurseAction
-	CurseReason       string
+	MCMS         *MCMSConfig
+	CurseActions []CurseAction
+	CurseReason  string
 }
 
-func subjectToByte16(subject uint64) [16]byte {
-	var b [16]byte
+type Subject = [16]byte
+
+func SelectorToSubject(subject uint64) Subject {
+	var b Subject
 	binary.LittleEndian.PutUint64(b[:8], subject)
 	return b
 }
@@ -37,11 +38,11 @@ func CurseLane(sourceSelector uint64, destinationSelector uint64) CurseAction {
 		return []RMNCurseAction{
 			{
 				ChainSelector:  sourceSelector,
-				SubjectToCurse: destinationSelector,
+				SubjectToCurse: SelectorToSubject(destinationSelector),
 			},
 			{
 				ChainSelector:  destinationSelector,
-				SubjectToCurse: sourceSelector,
+				SubjectToCurse: SelectorToSubject(sourceSelector),
 			},
 		}
 	}
@@ -57,7 +58,7 @@ func CurseChain(chainSelector uint64) CurseAction {
 			if otherChainSelector != chainSelector {
 				curseActions = append(curseActions, RMNCurseAction{
 					ChainSelector:  otherChainSelector,
-					SubjectToCurse: chainSelector,
+					SubjectToCurse: SelectorToSubject(chainSelector),
 				})
 			}
 		}
@@ -65,33 +66,33 @@ func CurseChain(chainSelector uint64) CurseAction {
 		// Curse the chain with a global curse to prevent any onramp or offramp message from send message in and out of the chain
 		curseActions = append(curseActions, RMNCurseAction{
 			ChainSelector:  chainSelector,
-			SubjectToCurse: GLOBAL_CURSE_SUBJECT,
+			SubjectToCurse: GlobalCurseSubject(),
 		})
 
 		return curseActions
 	}
 }
 
-func groupRMNSubjectBySelector(rmnSubjects []RMNCurseAction) map[uint64][]uint64 {
-	grouped := make(map[uint64][]uint64)
+func groupRMNSubjectBySelector(rmnSubjects []RMNCurseAction) map[uint64][]Subject {
+	grouped := make(map[uint64][]Subject)
 	for _, subject := range rmnSubjects {
 		grouped[subject.ChainSelector] = append(grouped[subject.ChainSelector], subject.SubjectToCurse)
 	}
 
 	// Only keep unique subjects, preserve only global curse if present and eliminate any curse where the selector is the same as the subject
 	for chainSelector, subjects := range grouped {
-		uniqueSubjects := make(map[uint64]struct{})
+		uniqueSubjects := make(map[Subject]struct{})
 		for _, subject := range subjects {
-			if subject == chainSelector {
+			if subject == SelectorToSubject(chainSelector) {
 				continue
 			}
 			uniqueSubjects[subject] = struct{}{}
 		}
 
-		if _, ok := uniqueSubjects[GLOBAL_CURSE_SUBJECT]; ok {
-			grouped[chainSelector] = []uint64{GLOBAL_CURSE_SUBJECT}
+		if _, ok := uniqueSubjects[GlobalCurseSubject()]; ok {
+			grouped[chainSelector] = []Subject{GlobalCurseSubject()}
 		} else {
-			var uniqueSubjectsSlice []uint64
+			var uniqueSubjectsSlice []Subject
 			for subject := range uniqueSubjects {
 				uniqueSubjectsSlice = append(uniqueSubjectsSlice, subject)
 			}
@@ -102,6 +103,18 @@ func groupRMNSubjectBySelector(rmnSubjects []RMNCurseAction) map[uint64][]uint64
 	return grouped
 }
 
+// NewRMNCurseChangeset creates a new changeset for cursing chains or lanes on RMNRemote contracts.
+// Example usage:
+//
+//	cfg := RMNCurseConfig{
+//	    CurseActions: []func(deployment.Environment) []RMNCurseAction{
+//	        CurseChain(SEPOLIA_CHAIN_SELECTOR),
+//	        CurseLane(SEPOLIA_CHAIN_SELECTOR, AVAX_FUJI_CHAIN_SELECTOR),
+//	    },
+//	    CurseReason: "test curse",
+//	    MCMS: &MCMSConfig{MinDelay: 0},
+//	}
+//	output, err := NewRMNCurseChangeset(env, cfg)
 func NewRMNCurseChangeset(e deployment.Environment, cfg RMNCurseConfig) (deployment.ChangesetOutput, error) {
 	state, err := LoadOnchainState(e)
 	if err != nil {
@@ -114,7 +127,6 @@ func NewRMNCurseChangeset(e deployment.Environment, cfg RMNCurseConfig) (deploym
 	for _, curseAction := range cfg.CurseActions {
 		curseActions = append(curseActions, curseAction(e)...)
 	}
-
 	// Group curse actions by chain selector
 	grouped := groupRMNSubjectBySelector(curseActions)
 
@@ -122,12 +134,7 @@ func NewRMNCurseChangeset(e deployment.Environment, cfg RMNCurseConfig) (deploym
 	for selector, chain := range state.Chains {
 		deployer := deployerGroup.getDeployer(selector)
 		if curseSubjects, ok := grouped[selector]; ok {
-			subjectsByte16 := make([][16]byte, len(curseSubjects))
-			for i, subject := range curseSubjects {
-				subjectsByte16[i] = subjectToByte16(subject)
-			}
-
-			_, err := chain.RMNRemote.Curse0(deployer, subjectsByte16)
+			_, err := chain.RMNRemote.Curse0(deployer, curseSubjects)
 			if err != nil {
 				return deployment.ChangesetOutput{}, fmt.Errorf("failed to curse chain %d: %w", selector, err)
 			}
diff --git a/deployment/ccip/changeset/cs_rmn_curse_uncurse_test.go b/deployment/ccip/changeset/cs_rmn_curse_uncurse_test.go
index 2a3f201f8ef..cb5c3fe099a 100644
--- a/deployment/ccip/changeset/cs_rmn_curse_uncurse_test.go
+++ b/deployment/ccip/changeset/cs_rmn_curse_uncurse_test.go
@@ -77,9 +77,8 @@ func testRmnCurse(t *testing.T, tc CurseTestCase) {
 	verifyNoActiveCurseOnAllChains(t, &e)
 
 	config := RMNCurseConfig{
-		HomeChainSelector: e.HomeChainSel,
-		CurseActions:      tc.curseActionsBuilder(mapIdToSelector),
-		CurseReason:       "test curse",
+		CurseActions: tc.curseActionsBuilder(mapIdToSelector),
+		CurseReason:  "test curse",
 	}
 
 	_, err := NewRMNCurseChangeset(e.Env, config)
@@ -96,10 +95,9 @@ func testRmnCurseMCMS(t *testing.T, tc CurseTestCase) {
 	}
 
 	config := RMNCurseConfig{
-		HomeChainSelector: e.HomeChainSel,
-		CurseActions:      tc.curseActionsBuilder(mapIdToSelector),
-		CurseReason:       "test curse",
-		MCMS:              &MCMSConfig{MinDelay: 0},
+		CurseActions: tc.curseActionsBuilder(mapIdToSelector),
+		CurseReason:  "test curse",
+		MCMS:         &MCMSConfig{MinDelay: 0},
 	}
 
 	state, err := LoadOnchainState(e.Env)
@@ -145,9 +143,9 @@ func verifyTestCaseAssertions(t *testing.T, e *DeployedEnv, tc CurseTestCase, ma
 	require.NoError(t, err)
 
 	for _, assertion := range tc.curseAssertions {
-		cursedSubject := subjectToByte16(mapIdToSelector(assertion.subject))
+		cursedSubject := SelectorToSubject(mapIdToSelector(assertion.subject))
 		if assertion.global_curse {
-			cursedSubject = subjectToByte16(GLOBAL_CURSE_SUBJECT)
+			cursedSubject = GlobalCurseSubject()
 		}
 
 		isCursed, err := state.Chains[mapIdToSelector(assertion.chainId)].RMNRemote.IsCursed(nil, cursedSubject)