diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -408,6 +408,7 @@
 	net_permissions.cpp
 	netaddress.cpp
 	netbase.cpp
+	policy/policy.cpp
 	primitives/block.cpp
 	protocol.cpp
 	psbt.cpp
@@ -496,7 +497,7 @@
 	outputtype.cpp
 	policy/fees.cpp
 	policy/mempool.cpp
-	policy/policy.cpp
+	policy/settings.cpp
 	pow.cpp
 	rest.cpp
 	rpc/abc.cpp
diff --git a/src/Makefile.am b/src/Makefile.am
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -188,6 +188,7 @@
   policy/fees.h \
   policy/mempool.h \
   policy/policy.h \
+  policy/settings.h \
   pow.h \
   protocol.h \
   psbt.h \
@@ -308,7 +309,7 @@
   outputtype.cpp \
   policy/fees.cpp \
   policy/mempool.cpp \
-  policy/policy.cpp \
+  policy/settings.cpp \
   pow.cpp \
   rest.cpp \
   rpc/abc.cpp \
@@ -490,6 +491,7 @@
   net_permissions.cpp \
   netaddress.cpp \
   netbase.cpp \
+  policy/policy.cpp \
   protocol.cpp \
   psbt.cpp \
   scheduler.cpp \
diff --git a/src/init.cpp b/src/init.cpp
--- a/src/init.cpp
+++ b/src/init.cpp
@@ -33,6 +33,7 @@
 #include <netbase.h>
 #include <policy/mempool.h>
 #include <policy/policy.h>
+#include <policy/settings.h>
 #include <rpc/blockchain.h>
 #include <rpc/register.h>
 #include <rpc/server.h>
diff --git a/src/interfaces/chain.cpp b/src/interfaces/chain.cpp
--- a/src/interfaces/chain.cpp
+++ b/src/interfaces/chain.cpp
@@ -12,6 +12,7 @@
 #include <node/coin.h>
 #include <policy/mempool.h>
 #include <policy/policy.h>
+#include <policy/settings.h>
 #include <primitives/block.h>
 #include <primitives/blockhash.h>
 #include <primitives/transaction.h>
diff --git a/src/interfaces/node.cpp b/src/interfaces/node.cpp
--- a/src/interfaces/node.cpp
+++ b/src/interfaces/node.cpp
@@ -20,6 +20,7 @@
 #include <netbase.h>
 #include <policy/fees.h>
 #include <policy/policy.h>
+#include <policy/settings.h>
 #include <primitives/block.h>
 #include <rpc/server.h>
 #include <scheduler.h>
diff --git a/src/policy/policy.h b/src/policy/policy.h
--- a/src/policy/policy.h
+++ b/src/policy/policy.h
@@ -8,6 +8,7 @@
 
 #include <consensus/consensus.h>
 #include <feerate.h>
+#include <policy/settings.h>
 #include <script/standard.h>
 
 #include <string>
@@ -64,6 +65,8 @@
  */
 static const unsigned int DEFAULT_BYTES_PER_SIGOP =
     1000000 / MAX_BLOCK_SIGOPS_PER_MB;
+/** Default for -permitbaremultisig */
+static const bool DEFAULT_PERMIT_BAREMULTISIG = true;
 /**
  * Min feerate for defining dust. Historically this has been the same as the
  * minRelayTxFee, however changing the dust limit changes which transactions are
@@ -138,9 +141,6 @@
 bool AreInputsStandard(const CTransaction &tx, const CCoinsViewCache &mapInputs,
                        uint32_t flags);
 
-extern CFeeRate dustRelayFee;
-extern uint32_t nBytesPerSigOp;
-
 /**
  * Compute the virtual transaction size (size, or more if sigops are too
  * dense).
diff --git a/src/policy/policy.cpp b/src/policy/policy.cpp
--- a/src/policy/policy.cpp
+++ b/src/policy/policy.cpp
@@ -8,6 +8,7 @@
 
 #include <policy/policy.h>
 
+#include <policy/settings.h>
 #include <script/interpreter.h>
 #include <tinyformat.h>
 #include <util/strencodings.h>
@@ -165,9 +166,6 @@
     return true;
 }
 
-CFeeRate dustRelayFee = CFeeRate(DUST_RELAY_TX_FEE);
-uint32_t nBytesPerSigOp = DEFAULT_BYTES_PER_SIGOP;
-
 int64_t GetVirtualTransactionSize(int64_t nSize, int64_t nSigOpCount,
                                   unsigned int bytes_per_sigop) {
     return std::max(nSize, nSigOpCount * bytes_per_sigop);
diff --git a/src/policy/settings.h b/src/policy/settings.h
new file mode 100644
--- /dev/null
+++ b/src/policy/settings.h
@@ -0,0 +1,18 @@
+// Copyright (c) 2009-2010 Satoshi Nakamoto
+// Copyright (c) 2009-2018 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
+// file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
+#ifndef BITCOIN_POLICY_SETTINGS_H
+#define BITCOIN_POLICY_SETTINGS_H
+
+#include <cstdint>
+
+class CFeeRate;
+
+// Policy settings which are configurable at runtime.
+extern CFeeRate dustRelayFee;
+extern uint32_t nBytesPerSigOp;
+extern bool fIsBareMultisigStd;
+
+#endif // BITCOIN_POLICY_SETTINGS_H
diff --git a/src/policy/settings.cpp b/src/policy/settings.cpp
new file mode 100644
--- /dev/null
+++ b/src/policy/settings.cpp
@@ -0,0 +1,13 @@
+// Copyright (c) 2009-2010 Satoshi Nakamoto
+// Copyright (c) 2009-2018 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
+// file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
+#include <policy/settings.h>
+
+#include <feerate.h>
+#include <policy/policy.h>
+
+bool fIsBareMultisigStd = DEFAULT_PERMIT_BAREMULTISIG;
+CFeeRate dustRelayFee = CFeeRate(DUST_RELAY_TX_FEE);
+uint32_t nBytesPerSigOp = DEFAULT_BYTES_PER_SIGOP;
diff --git a/src/rpc/net.cpp b/src/rpc/net.cpp
--- a/src/rpc/net.cpp
+++ b/src/rpc/net.cpp
@@ -14,6 +14,7 @@
 #include <net_processing.h>
 #include <netbase.h>
 #include <policy/policy.h>
+#include <policy/settings.h>
 #include <rpc/protocol.h>
 #include <rpc/util.h>
 #include <sync.h>
diff --git a/src/test/script_p2sh_tests.cpp b/src/test/script_p2sh_tests.cpp
--- a/src/test/script_p2sh_tests.cpp
+++ b/src/test/script_p2sh_tests.cpp
@@ -7,6 +7,7 @@
 #include <key.h>
 #include <keystore.h>
 #include <policy/policy.h>
+#include <policy/settings.h>
 #include <script/ismine.h>
 #include <script/script.h>
 #include <script/script_error.h>
diff --git a/src/test/transaction_tests.cpp b/src/test/transaction_tests.cpp
--- a/src/test/transaction_tests.cpp
+++ b/src/test/transaction_tests.cpp
@@ -14,6 +14,7 @@
 #include <key.h>
 #include <keystore.h>
 #include <policy/policy.h>
+#include <policy/settings.h>
 #include <script/script.h>
 #include <script/script_error.h>
 #include <script/sign.h>
diff --git a/src/txmempool.cpp b/src/txmempool.cpp
--- a/src/txmempool.cpp
+++ b/src/txmempool.cpp
@@ -14,6 +14,7 @@
 #include <consensus/validation.h>
 #include <policy/fees.h>
 #include <policy/policy.h>
+#include <policy/settings.h>
 #include <reverse_iterator.h>
 #include <streams.h>
 #include <timedata.h>
diff --git a/src/validation.h b/src/validation.h
--- a/src/validation.h
+++ b/src/validation.h
@@ -142,8 +142,6 @@
  */
 static const int64_t MAX_FEE_ESTIMATION_TIP_AGE = 3 * 60 * 60;
 
-/** Default for -permitbaremultisig */
-static const bool DEFAULT_PERMIT_BAREMULTISIG = true;
 static const bool DEFAULT_CHECKPOINTS_ENABLED = true;
 static const bool DEFAULT_TXINDEX = false;
 static const unsigned int DEFAULT_BANSCORE_THRESHOLD = 100;
@@ -186,7 +184,6 @@
 extern std::atomic_bool fImporting;
 extern std::atomic_bool fReindex;
 extern int nScriptCheckThreads;
-extern bool fIsBareMultisigStd;
 extern bool fRequireStandard;
 extern bool fCheckBlockIndex;
 extern bool fCheckpointsEnabled;
diff --git a/src/validation.cpp b/src/validation.cpp
--- a/src/validation.cpp
+++ b/src/validation.cpp
@@ -28,6 +28,7 @@
 #include <policy/fees.h>
 #include <policy/mempool.h>
 #include <policy/policy.h>
+#include <policy/settings.h>
 #include <pow.h>
 #include <primitives/block.h>
 #include <primitives/transaction.h>
@@ -264,7 +265,6 @@
 std::atomic_bool fReindex(false);
 bool fHavePruned = false;
 bool fPruneMode = false;
-bool fIsBareMultisigStd = DEFAULT_PERMIT_BAREMULTISIG;
 bool fRequireStandard = true;
 bool fCheckBlockIndex = false;
 bool fCheckpointsEnabled = DEFAULT_CHECKPOINTS_ENABLED;
diff --git a/test/lint/lint-circular-dependencies.sh b/test/lint/lint-circular-dependencies.sh
--- a/test/lint/lint-circular-dependencies.sh
+++ b/test/lint/lint-circular-dependencies.sh
@@ -11,6 +11,7 @@
 EXPECTED_CIRCULAR_DEPENDENCIES=(
     "index/txindex -> validation -> index/txindex"
     "policy/policy -> validation -> policy/policy"
+    "policy/policy -> policy/settings -> policy/policy"
     "qt/addresstablemodel -> qt/walletmodel -> qt/addresstablemodel"
     "qt/bantablemodel -> qt/clientmodel -> qt/bantablemodel"
     "qt/bitcoingui -> qt/utilitydialog -> qt/bitcoingui"