diff --git a/src/activemasternode.cpp b/src/activemasternode.cpp
index 662032558..a84a970d5 100644
--- a/src/activemasternode.cpp
+++ b/src/activemasternode.cpp
@@ -9,13 +9,144 @@
 #include "netbase.h"
 #include "protocol.h"
 #include "netbase.h"
+#include "warnings.h"
+#include "init.h"
+#include "evo/deterministicmns.h"
 
 // Keep track of the active Masternode
 CActiveMasternodeInfo activeMasternodeInfo;
 CActiveLegacyMasternodeManager legacyActiveMasternodeManager;
+CActiveDeterministicMasternodeManager* activeMasternodeManager;
+
+std::string CActiveDeterministicMasternodeManager::GetStateString() const
+{
+    switch (state) {
+        case MASTERNODE_WAITING_FOR_PROTX:  return "WAITING_FOR_PROTX";
+        case MASTERNODE_POSE_BANNED:        return "POSE_BANNED";
+        case MASTERNODE_REMOVED:            return "REMOVED";
+        case MASTERNODE_READY:              return "READY";
+        case MASTERNODE_ERROR:              return "ERROR";
+        default:                            return "UNKNOWN";
+    }
+}
+
+std::string CActiveDeterministicMasternodeManager::GetStatus() const
+{
+    switch (state) {
+        case MASTERNODE_WAITING_FOR_PROTX:  return "Waiting for ProTx to appear on-chain";
+        case MASTERNODE_POSE_BANNED:        return "Masternode was PoSe banned";
+        case MASTERNODE_REMOVED:            return "Masternode removed from list";
+        case MASTERNODE_READY:              return "Ready";
+        case MASTERNODE_ERROR:              return "Error. " + strError;
+        default:                            return "Unknown";
+    }
+}
+
+void CActiveDeterministicMasternodeManager::Init()
+{
+    LOCK(cs_main);
+
+    if (!fMasternodeMode)
+        return;
+
+    if (!deterministicMNManager->IsDeterministicMNsSporkActive())
+        return;
+
+    if (!GetLocalAddress(activeMasternodeInfo.service)) {
+        state = MASTERNODE_ERROR;
+        return;
+    }
+
+    CDeterministicMNList mnList = deterministicMNManager->GetListAtChainTip();
+
+    CDeterministicMNCPtr dmn = mnList.GetMNByOperatorKey(activeMasternodeInfo.keyIDOperator);
+    if (!dmn) {
+        // MN not appeared on the chain yet
+        return;
+    }
+
+    if (!mnList.IsMNValid(dmn->proTxHash)) {
+        if (mnList.IsMNPoSeBanned(dmn->proTxHash)) {
+            state = MASTERNODE_POSE_BANNED;
+        } else {
+            state = MASTERNODE_REMOVED;
+        }
+        return;
+    }
+
+    mnListEntry = dmn;
+
+    LogPrintf("CActiveDeterministicMasternodeManager::Init -- proTxHash=%s, proTx=%s\n", mnListEntry->proTxHash.ToString(), mnListEntry->ToString());
+
+    if (activeMasternodeInfo.service != mnListEntry->pdmnState->addr) {
+        state = MASTERNODE_ERROR;
+        strError = "Local address does not match the address from ProTx";
+        LogPrintf("CActiveDeterministicMasternodeManager::Init -- ERROR: %s", strError);
+        return;
+    }
+
+    if (mnListEntry->pdmnState->nProtocolVersion != PROTOCOL_VERSION) {
+        state = MASTERNODE_ERROR;
+        strError = "Local protocol version does not match version from ProTx. You may need to update the ProTx";
+        LogPrintf("CActiveDeterministicMasternodeManager::Init -- ERROR: %s", strError);
+        return;
+    }
+
+    activeMasternodeInfo.outpoint = COutPoint(mnListEntry->proTxHash, mnListEntry->nCollateralIndex);
+    state = MASTERNODE_READY;
+}
+
+void CActiveDeterministicMasternodeManager::UpdatedBlockTip(const CBlockIndex* pindexNew, const CBlockIndex* pindexFork, bool fInitialDownload)
+{
+    LOCK(cs_main);
+
+    if (!fMasternodeMode)
+        return;
+
+    if (!deterministicMNManager->IsDeterministicMNsSporkActive(pindexNew->nHeight)) {
+        return;
+    }
+
+    if (state == MASTERNODE_WAITING_FOR_PROTX) {
+        Init();
+    } else if (state == MASTERNODE_READY) {
+        if (!deterministicMNManager->HasValidMNAtBlock(pindexNew->GetBlockHash(), mnListEntry->proTxHash)) {
+            // MN disappeared from MN list
+            state = MASTERNODE_REMOVED;
+            activeMasternodeInfo.outpoint.SetNull();
+            // MN might have reappeared in same block with a new ProTx (with same masternode key)
+            Init();
+        }
+    } else if (state == MASTERNODE_REMOVED || state == MASTERNODE_POSE_BANNED) {
+        // MN might have reappeared with a new ProTx (with same masternode key)
+        Init();
+    }
+}
+
+bool CActiveDeterministicMasternodeManager::GetLocalAddress(CService &addrRet)
+{
+    // First try to find whatever local address is specified by externalip option
+    bool fFoundLocal = GetLocal(addrRet) && CMasternode::IsValidNetAddr(addrRet);
+    if (!fFoundLocal && Params().NetworkIDString() == CBaseChainParams::REGTEST) {
+        if (Lookup("127.0.0.1", addrRet, GetListenPort(), false)) {
+            fFoundLocal = true;
+        }
+    }
+    if(!fFoundLocal) {
+        strError = "Can't detect valid external address. Please consider using the externalip configuration option if problem persists. Make sure to use IPv4 address only.";
+        LogPrintf("CActiveDeterministicMasternodeManager::GetLocalAddress -- ERROR: %s\n", strError);
+        return false;
+    }
+    return true;
+}
+
+/********* LEGACY *********/
 
 void CActiveLegacyMasternodeManager::ManageState(CConnman& connman)
 {
+    if (deterministicMNManager->IsDeterministicMNsSporkActive())
+        return;
+
     LogPrint("masternode", "CActiveLegacyMasternodeManager::ManageState -- Start\n");
     if(!fMasternodeMode) {
         LogPrint("masternode", "CActiveLegacyMasternodeManager::ManageState -- Not a masternode, returning\n");
@@ -84,6 +215,9 @@ std::string CActiveLegacyMasternodeManager::GetTypeString() const
 
 bool CActiveLegacyMasternodeManager::SendMasternodePing(CConnman& connman)
 {
+    if (deterministicMNManager->IsDeterministicMNsSporkActive())
+        return false;
+
     if(!fPingerEnabled) {
         LogPrint("masternode", "CActiveLegacyMasternodeManager::SendMasternodePing -- %s: masternode ping service is disabled, skipping...\n", GetStateString());
         return false;
@@ -129,6 +263,9 @@ bool CActiveLegacyMasternodeManager::UpdateSentinelPing(int version)
 
 void CActiveLegacyMasternodeManager::ManageStateInitial(CConnman& connman)
 {
+    if (deterministicMNManager->IsDeterministicMNsSporkActive())
+        return;
+
     LogPrint("masternode", "CActiveLegacyMasternodeManager::ManageStateInitial -- status = %s, type = %s, pinger enabled = %d\n", GetStatus(), GetTypeString(), fPingerEnabled);
 
     // Check that our local network configuration is correct
@@ -210,6 +347,9 @@ void CActiveLegacyMasternodeManager::ManageStateInitial(CConnman& connman)
 
 void CActiveLegacyMasternodeManager::ManageStateRemote()
 {
+    if (deterministicMNManager->IsDeterministicMNsSporkActive())
+        return;
+
     LogPrint("masternode", "CActiveLegacyMasternodeManager::ManageStateRemote -- Start status = %s, type = %s, pinger enabled = %d, keyIDOperator = %s\n",
              GetStatus(), GetTypeString(), fPingerEnabled, activeMasternodeInfo.keyIDOperator.ToString());
 
diff --git a/src/activemasternode.h b/src/activemasternode.h
index f6a17150d..c937d57e0 100644
--- a/src/activemasternode.h
+++ b/src/activemasternode.h
@@ -9,9 +9,14 @@
 #include "key.h"
 #include "net.h"
 #include "primitives/transaction.h"
+#include "validationinterface.h"
+
+#include "evo/providertx.h"
+#include "evo/deterministicmns.h"
 
 struct CActiveMasternodeInfo;
 class CActiveLegacyMasternodeManager;
+class CActiveDeterministicMasternodeManager;
 
 static const int ACTIVE_MASTERNODE_INITIAL          = 0; // initial state
 static const int ACTIVE_MASTERNODE_SYNC_IN_PROCESS  = 1;
@@ -21,6 +26,7 @@ static const int ACTIVE_MASTERNODE_STARTED          = 4;
 
 extern CActiveMasternodeInfo activeMasternodeInfo;
 extern CActiveLegacyMasternodeManager legacyActiveMasternodeManager;
+extern CActiveDeterministicMasternodeManager* activeMasternodeManager;
 
 struct CActiveMasternodeInfo {
     // Keys for the active Masternode
@@ -32,7 +38,39 @@ struct CActiveMasternodeInfo {
     CService service;
 };
 
-// Responsible for activating the Masternode and pinging the network
+
+class CActiveDeterministicMasternodeManager : public CValidationInterface
+{
+public:
+    enum masternode_state_t {
+        MASTERNODE_WAITING_FOR_PROTX,
+        MASTERNODE_POSE_BANNED,
+        MASTERNODE_REMOVED,
+        MASTERNODE_READY,
+        MASTERNODE_ERROR,
+    };
+
+private:
+    CDeterministicMNCPtr mnListEntry;
+    masternode_state_t state{MASTERNODE_WAITING_FOR_PROTX};
+    std::string strError;
+
+public:
+    virtual void UpdatedBlockTip(const CBlockIndex* pindexNew, const CBlockIndex* pindexFork, bool fInitialDownload);
+
+    void Init();
+
+    CDeterministicMNCPtr GetDMN() const { return mnListEntry; }
+
+    masternode_state_t GetState() const { return state; }
+    std::string GetStateString() const;
+    std::string GetStatus() const;
+
+private:
+    bool GetLocalAddress(CService &addrRet);
+};
+
+// Responsible for activating the Masternode and pinging the network (legacy MN list)
 class CActiveLegacyMasternodeManager
 {
 public:
diff --git a/src/init.cpp b/src/init.cpp
index 8fbf91781..e148b6e72 100644
--- a/src/init.cpp
+++ b/src/init.cpp
@@ -318,6 +318,9 @@ void PrepareShutdown()
         delete pdsNotificationInterface;
         pdsNotificationInterface = NULL;
     }
+    if (fMasternodeMode) {
+        UnregisterValidationInterface(activeMasternodeManager);
+    }
 
 #ifndef WIN32
     try {
@@ -1880,6 +1883,10 @@ bool AppInitMain(boost::thread_group& threadGroup, CScheduler& scheduler)
         } else {
             return InitError(_("You must specify a masternodeprivkey in the configuration. Please see documentation for help."));
         }
+
+        // init and register activeMasternodeManager
+        activeMasternodeManager = new CActiveDeterministicMasternodeManager();
+        RegisterValidationInterface(activeMasternodeManager);
     }
 
 #ifdef ENABLE_WALLET
@@ -1996,6 +2003,9 @@ bool AppInitMain(boost::thread_group& threadGroup, CScheduler& scheduler)
     // GetMainSignals().UpdatedBlockTip(chainActive.Tip());
     pdsNotificationInterface->InitializeCurrentBlockTip();
 
+    if (activeMasternodeManager && fDIP0003ActiveAtTip)
+        activeMasternodeManager->Init();
+
     // ********************************************************* Step 11d: schedule Dash-specific tasks
 
     if (!fLiteMode) {