diff --git a/x/farming/client/proposal_handler.go b/x/farming/client/proposal_handler.go
index b933d630..a8d00a97 100644
--- a/x/farming/client/proposal_handler.go
+++ b/x/farming/client/proposal_handler.go
@@ -4,9 +4,10 @@ import (
 	govclient "github.com/cosmos/cosmos-sdk/x/gov/client"
 
 	"github.com/tendermint/farming/x/farming/client/cli"
+	"github.com/tendermint/farming/x/farming/client/rest"
 )
 
 // ProposalHandler is the public plan creation handler.
 var (
-	ProposalHandler = govclient.NewProposalHandler(cli.GetCmdSubmitPublicPlanProposal, nil)
+	ProposalHandler = govclient.NewProposalHandler(cli.GetCmdSubmitPublicPlanProposal, rest.ProposalRESTHandler)
 )
diff --git a/x/farming/client/rest/rest.go b/x/farming/client/rest/rest.go
new file mode 100644
index 00000000..53a4b251
--- /dev/null
+++ b/x/farming/client/rest/rest.go
@@ -0,0 +1,24 @@
+package rest
+
+import (
+	"net/http"
+
+	"github.com/cosmos/cosmos-sdk/client"
+	govrest "github.com/cosmos/cosmos-sdk/x/gov/client/rest"
+)
+
+// TODO: not implemented yet; although this legacy REST API may not be needed,
+// it needs for ProposalHandler; otherwise it throws panic when starting the chain
+
+// ProposalRESTHandler returns a ProposalRESTHandler that exposes the community pool spend REST handler with a given sub-route.
+func ProposalRESTHandler(clientCtx client.Context) govrest.ProposalRESTHandler {
+	return govrest.ProposalRESTHandler{
+		SubRoute: "farming_plan",
+		Handler:  postProposalHandlerFn(clientCtx),
+	}
+}
+
+func postProposalHandlerFn(clientCtx client.Context) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+	}
+}
diff --git a/x/farming/keeper/proposal_handler.go b/x/farming/keeper/proposal_handler.go
index 86bfdb9e..65e6ccd0 100644
--- a/x/farming/keeper/proposal_handler.go
+++ b/x/farming/keeper/proposal_handler.go
@@ -37,10 +37,6 @@ func HandlePublicPlanProposal(ctx sdk.Context, k Keeper, proposal *types.PublicP
 // AddPublicPlanProposal adds a new public plan once the governance proposal is passed.
 func (k Keeper) AddPublicPlanProposal(ctx sdk.Context, proposals []*types.AddRequestProposal) error {
 	for _, p := range proposals {
-		if err := p.Validate(); err != nil {
-			return err
-		}
-
 		farmingPoolAddrAcc, err := sdk.AccAddressFromBech32(p.GetFarmingPoolAddress())
 		if err != nil {
 			return err
@@ -90,10 +86,6 @@ func (k Keeper) AddPublicPlanProposal(ctx sdk.Context, proposals []*types.AddReq
 // UpdatePublicPlanProposal overwrites the plan with the new plan proposal once the governance proposal is passed.
 func (k Keeper) UpdatePublicPlanProposal(ctx sdk.Context, proposals []*types.UpdateRequestProposal) error {
 	for _, proposal := range proposals {
-		if err := proposal.Validate(); err != nil {
-			return err
-		}
-
 		plan, found := k.GetPlan(ctx, proposal.GetPlanId())
 		if !found {
 			return sdkerrors.Wrapf(sdkerrors.ErrNotFound, "plan %d is not found", proposal.GetPlanId())
@@ -169,10 +161,6 @@ func (k Keeper) UpdatePublicPlanProposal(ctx sdk.Context, proposals []*types.Upd
 // DeletePublicPlanProposal delets public plan proposal once the governance proposal is passed.
 func (k Keeper) DeletePublicPlanProposal(ctx sdk.Context, proposals []*types.DeleteRequestProposal) error {
 	for _, p := range proposals {
-		if err := p.Validate(); err != nil {
-			return err
-		}
-
 		plan, found := k.GetPlan(ctx, p.GetPlanId())
 		if !found {
 			return sdkerrors.Wrapf(sdkerrors.ErrNotFound, "plan %d is not found", p.GetPlanId())
diff --git a/x/farming/types/proposal.go b/x/farming/types/proposal.go
index 142818b2..48e1ebd1 100644
--- a/x/farming/types/proposal.go
+++ b/x/farming/types/proposal.go
@@ -43,6 +43,21 @@ func (p *PublicPlanProposal) ValidateBasic() error {
 	if p.AddRequestProposals == nil && p.UpdateRequestProposals == nil && p.DeleteRequestProposals == nil {
 		return sdkerrors.Wrap(sdkerrors.ErrInvalidRequest, "proposal request must not be empty")
 	}
+	for _, ap := range p.AddRequestProposals {
+		if err := ap.Validate(); err != nil {
+			return err
+		}
+	}
+	for _, up := range p.UpdateRequestProposals {
+		if err := up.Validate(); err != nil {
+			return err
+		}
+	}
+	for _, dp := range p.DeleteRequestProposals {
+		if err := dp.Validate(); err != nil {
+			return err
+		}
+	}
 	return gov.ValidateAbstract(p)
 }