diff --git a/devenv/common/config.go b/devenv/common/config.go
index 2a6f367ae0..8706460471 100644
--- a/devenv/common/config.go
+++ b/devenv/common/config.go
@@ -164,6 +164,31 @@ func DeriveOCRParamsForExec(
 	return override(params)
 }
 
+func withTONOCRConfigOverrides(params CCIPOCRParams) CCIPOCRParams {
+	// Source of truth: chainlink-deployments/domains/ccip/shared/chainconfigs.go:1076
+	// TON offramp enforces one root per commit report + one message per exec report.
+	if params.CommitOffChainConfig != nil {
+		params.CommitOffChainConfig.MultipleReportsEnabled = true
+		params.CommitOffChainConfig.MaxMerkleRootsPerReport = 1
+		params.CommitOffChainConfig.MaxPricesPerReport = 3
+		params.CommitOffChainConfig.MaxMerkleTreeSize = 10
+		params.CommitOffChainConfig.TransmissionDelayMultiplier = 2 * time.Minute
+		params.CommitOffChainConfig.MaxReportTransmissionCheckAttempts = 2
+	}
+	if params.ExecuteOffChainConfig != nil {
+		params.ExecuteOffChainConfig.MaxReportMessages = 1
+		params.ExecuteOffChainConfig.MaxSingleChainReports = 1
+		params.ExecuteOffChainConfig.BatchGasLimit = 1_000_000
+		params.ExecuteOffChainConfig.TransmissionDelayMultiplier = 2 * time.Minute
+		params.ExecuteOffChainConfig.MaxCommitReportsToFetch = 250
+		params.ExecuteOffChainConfig.InflightCacheExpiry = *config.MustNewDuration(1 * time.Minute)
+		params.ExecuteOffChainConfig.MessageVisibilityInterval = *config.MustNewDuration(8 * time.Hour)
+		params.ExecuteOffChainConfig.RootSnoozeTime = *config.MustNewDuration(5 * time.Minute)
+		params.ExecuteOffChainConfig.MultipleReportsEnabled = true
+	}
+	return params
+}
+
 type ConfigType string
 
 const (
diff --git a/devenv/common/implcommon.go b/devenv/common/implcommon.go
index febf6b04fa..6beb2320d3 100644
--- a/devenv/common/implcommon.go
+++ b/devenv/common/implcommon.go
@@ -444,10 +444,14 @@ func AddNodesToContracts(
 	}
 
 	for _, chain := range remoteSelectors {
+		family, _ := chainsel.GetSelectorFamily(chain)
 		ocrOverride := func(ocrParams CCIPOCRParams) CCIPOCRParams {
 			if ocrParams.CommitOffChainConfig != nil {
 				ocrParams.CommitOffChainConfig.RMNEnabled = false
 			}
+			if family == chainsel.FamilyTon {
+				return withTONOCRConfigOverrides(ocrParams)
+			}
 			return ocrParams
 		}
 		commitOCRConfigs[chain] = DeriveOCRParamsForCommit(SimulationTest, ccipHomeSelector, nil, ocrOverride)