diff --git a/x/committee/keeper/proposal.go b/x/committee/keeper/proposal.go
index b36f4470..f2db48c5 100644
--- a/x/committee/keeper/proposal.go
+++ b/x/committee/keeper/proposal.go
@@ -78,7 +78,6 @@ func (k Keeper) AddVote(ctx sdk.Context, proposalID uint64, voter sdk.AccAddress
 }
 
 // GetProposalResult calculates if a proposal currently has enough votes to pass.
-// TODO rename GetProposalTally?
 func (k Keeper) GetProposalResult(ctx sdk.Context, proposalID uint64) (bool, sdk.Error) {
 	pr, found := k.GetProposal(ctx, proposalID)
 	if !found {
@@ -123,23 +122,23 @@ func (k Keeper) EnactProposal(ctx sdk.Context, proposalID uint64) sdk.Error {
 }
 
 // CloseExpiredProposals removes proposals (and associated votes) that have past their deadline.
-// TODO rename to RemoveExpiredProposals?
 func (k Keeper) CloseExpiredProposals(ctx sdk.Context) {
 
 	k.IterateProposals(ctx, func(proposal types.Proposal) bool {
-		if proposal.HasExpiredBy(ctx.BlockTime()) {
-
-			k.DeleteProposalAndVotes(ctx, proposal.ID)
-
-			ctx.EventManager().EmitEvent(
-				sdk.NewEvent(
-					types.EventTypeProposalClose,
-					sdk.NewAttribute(types.AttributeKeyCommitteeID, fmt.Sprintf("%d", proposal.CommitteeID)),
-					sdk.NewAttribute(types.AttributeKeyProposalID, fmt.Sprintf("%d", proposal.ID)),
-					sdk.NewAttribute(types.AttributeKeyProposalCloseStatus, types.AttributeValueProposalTimeout),
-				),
-			)
+		if !proposal.HasExpiredBy(ctx.BlockTime()) {
+			return false
 		}
+
+		k.DeleteProposalAndVotes(ctx, proposal.ID)
+
+		ctx.EventManager().EmitEvent(
+			sdk.NewEvent(
+				types.EventTypeProposalClose,
+				sdk.NewAttribute(types.AttributeKeyCommitteeID, fmt.Sprintf("%d", proposal.CommitteeID)),
+				sdk.NewAttribute(types.AttributeKeyProposalID, fmt.Sprintf("%d", proposal.ID)),
+				sdk.NewAttribute(types.AttributeKeyProposalCloseStatus, types.AttributeValueProposalTimeout),
+			),
+		)
 		return false
 	})
 }
diff --git a/x/committee/proposal_handler.go b/x/committee/proposal_handler.go
index 749434bd..da5a049e 100644
--- a/x/committee/proposal_handler.go
+++ b/x/committee/proposal_handler.go
@@ -29,9 +29,10 @@ func handleCommitteeChangeProposal(ctx sdk.Context, k Keeper, committeeProposal
 
 	// Remove all committee's ongoing proposals
 	k.IterateProposals(ctx, func(p Proposal) bool {
-		if p.CommitteeID == committeeProposal.NewCommittee.ID {
-			k.DeleteProposalAndVotes(ctx, p.ID)
+		if p.CommitteeID != committeeProposal.NewCommittee.ID {
+			return false
 		}
+		k.DeleteProposalAndVotes(ctx, p.ID)
 		return false
 	})
 
@@ -47,9 +48,10 @@ func handleCommitteeDeleteProposal(ctx sdk.Context, k Keeper, committeeProposal
 
 	// Remove all committee's ongoing proposals
 	k.IterateProposals(ctx, func(p Proposal) bool {
-		if p.CommitteeID == committeeProposal.CommitteeID {
-			k.DeleteProposalAndVotes(ctx, p.ID)
+		if p.CommitteeID != committeeProposal.CommitteeID {
+			return false
 		}
+		k.DeleteProposalAndVotes(ctx, p.ID)
 		return false
 	})
 
diff --git a/x/committee/types/committee.go b/x/committee/types/committee.go
index 4f705a22..fb22a196 100644
--- a/x/committee/types/committee.go
+++ b/x/committee/types/committee.go
@@ -21,8 +21,8 @@ type Committee struct {
 	Description      string           `json:"description" yaml:"description"`
 	Members          []sdk.AccAddress `json:"members" yaml:"members"`
 	Permissions      []Permission     `json:"permissions" yaml:"permissions"`
-	VoteThreshold    sdk.Dec          `json:"vote_threshold" yaml:"vote_threshold"`
-	ProposalDuration time.Duration    `json:"proposal_duration" yaml:"proposal_duration"`
+	VoteThreshold    sdk.Dec          `json:"vote_threshold" yaml:"vote_threshold"`       // Smallest percentage of members that must vote for a proposal to pass.
+	ProposalDuration time.Duration    `json:"proposal_duration" yaml:"proposal_duration"` // The length of time a proposal remains active for. Proposals will close earlier if they get enough votes.
 }
 
 func NewCommittee(id uint64, description string, members []sdk.AccAddress, permissions []Permission, threshold sdk.Dec, duration time.Duration) Committee {
@@ -80,22 +80,18 @@ func (c Committee) Validate() error {
 		return fmt.Errorf("invalid description")
 	}
 
-	if c.VoteThreshold.IsNil() || c.VoteThreshold.IsNegative() || c.VoteThreshold.GT(sdk.NewDec(1)) {
+	// threshold must be in the range (0,1]
+	if c.VoteThreshold.IsNil() || c.VoteThreshold.LTE(sdk.ZeroDec()) || c.VoteThreshold.GT(sdk.NewDec(1)) {
 		return fmt.Errorf("invalid threshold")
 	}
 
 	if c.ProposalDuration < 0 {
-		return fmt.Errorf("invalid time")
+		return fmt.Errorf("invalid proposal duration")
 	}
 
 	return nil
 }
 
-// Permission is anything with a method that validates whether a proposal is allowed by it or not.
-type Permission interface {
-	Allows(PubProposal) bool
-}
-
 // ------------------------------------------
 //				Proposals
 // ------------------------------------------
diff --git a/x/committee/types/permissions.go b/x/committee/types/permissions.go
index 77a66aa2..6608d9bd 100644
--- a/x/committee/types/permissions.go
+++ b/x/committee/types/permissions.go
@@ -13,6 +13,15 @@ func init() {
 	gov.RegisterProposalTypeCodec(ParamChangePermission{}, "kava/ParamChangePermission")
 }
 
+// Permission is anything with a method that validates whether a proposal is allowed by it or not.
+type Permission interface {
+	Allows(PubProposal) bool
+}
+
+// ------------------------------------------
+//				GodPermission
+// ------------------------------------------
+
 // GodPermission allows any governance proposal. It is used mainly for testing.
 type GodPermission struct{}
 
@@ -29,6 +38,10 @@ func (GodPermission) MarshalYAML() (interface{}, error) {
 	return valueToMarshal, nil
 }
 
+// ------------------------------------------
+//				ParamChangePermission
+// ------------------------------------------
+
 // ParamChangeProposal only allows changes to certain params
 type ParamChangePermission struct {
 	AllowedParams AllowedParams `json:"allowed_params" yaml:"allowed_params"`
@@ -76,6 +89,10 @@ func (allowed AllowedParams) Contains(paramChange params.ParamChange) bool {
 	return false
 }
 
+// ------------------------------------------
+//				TextPermission
+// ------------------------------------------
+
 // TextPermission allows any text governance proposal.
 type TextPermission struct{}