diff --git a/cmd/geth/config.go b/cmd/geth/config.go
index c71d5eb653..c77c04c252 100644
--- a/cmd/geth/config.go
+++ b/cmd/geth/config.go
@@ -20,6 +20,7 @@ import (
 	"bufio"
 	"errors"
 	"fmt"
+	"math/big"
 	"os"
 	"reflect"
 	"unicode"
@@ -165,7 +166,9 @@ func checkWhisper(ctx *cli.Context) {
 // makeFullNode loads geth configuration and creates the Ethereum backend.
 func makeFullNode(ctx *cli.Context) (*node.Node, ethapi.Backend) {
 	stack, cfg := makeConfigNode(ctx)
-
+	if ctx.GlobalIsSet(utils.OverrideBerlinFlag.Name) {
+		cfg.Eth.OverrideBerlin = new(big.Int).SetUint64(ctx.GlobalUint64(utils.OverrideBerlinFlag.Name))
+	}
 	backend := utils.RegisterEthService(stack, &cfg.Eth)
 
 	checkWhisper(ctx)
diff --git a/cmd/geth/main.go b/cmd/geth/main.go
index a3af44f6c4..9afa031584 100644
--- a/cmd/geth/main.go
+++ b/cmd/geth/main.go
@@ -69,6 +69,7 @@ var (
 		utils.NoUSBFlag,
 		utils.USBFlag,
 		utils.SmartCardDaemonPathFlag,
+		utils.OverrideBerlinFlag,
 		utils.EthashCacheDirFlag,
 		utils.EthashCachesInMemoryFlag,
 		utils.EthashCachesOnDiskFlag,
diff --git a/cmd/puppeth/wizard_genesis.go b/cmd/puppeth/wizard_genesis.go
index 78f63e1c7a..4f701fa1c3 100644
--- a/cmd/puppeth/wizard_genesis.go
+++ b/cmd/puppeth/wizard_genesis.go
@@ -235,6 +235,10 @@ func (w *wizard) manageGenesis() {
 		fmt.Printf("Which block should Istanbul come into effect? (default = %v)\n", w.conf.Genesis.Config.IstanbulBlock)
 		w.conf.Genesis.Config.IstanbulBlock = w.readDefaultBigInt(w.conf.Genesis.Config.IstanbulBlock)
 
+		fmt.Println()
+		fmt.Printf("Which block should Berlin come into effect? (default = %v)\n", w.conf.Genesis.Config.BerlinBlock)
+		w.conf.Genesis.Config.BerlinBlock = w.readDefaultBigInt(w.conf.Genesis.Config.BerlinBlock)
+
 		fmt.Println()
 		fmt.Printf("Which block should YOLOv3 come into effect? (default = %v)\n", w.conf.Genesis.Config.YoloV3Block)
 		w.conf.Genesis.Config.YoloV3Block = w.readDefaultBigInt(w.conf.Genesis.Config.YoloV3Block)
diff --git a/cmd/utils/flags.go b/cmd/utils/flags.go
index 57547d0c49..324a6d6a47 100644
--- a/cmd/utils/flags.go
+++ b/cmd/utils/flags.go
@@ -230,6 +230,10 @@ var (
 		Usage: "Megabytes of memory allocated to bloom-filter for pruning",
 		Value: 2048,
 	}
+	OverrideBerlinFlag = cli.Uint64Flag{
+		Name:  "override.berlin",
+		Usage: "Manually specify Berlin fork-block, overriding the bundled setting",
+	}
 	// Light server and client settings
 	LightServeFlag = cli.IntFlag{
 		Name:  "light.serve",
diff --git a/core/forkid/forkid_test.go b/core/forkid/forkid_test.go
index 888b553475..a20598fa9d 100644
--- a/core/forkid/forkid_test.go
+++ b/core/forkid/forkid_test.go
@@ -43,24 +43,26 @@ func TestCreation(t *testing.T) {
 			params.MainnetChainConfig,
 			params.MainnetGenesisHash,
 			[]testcase{
-				{0, ID{Hash: checksumToBytes(0xfc64ec04), Next: 1150000}},       // Unsynced
-				{1149999, ID{Hash: checksumToBytes(0xfc64ec04), Next: 1150000}}, // Last Frontier block
-				{1150000, ID{Hash: checksumToBytes(0x97c2c34c), Next: 1920000}}, // First Homestead block
-				{1919999, ID{Hash: checksumToBytes(0x97c2c34c), Next: 1920000}}, // Last Homestead block
-				{1920000, ID{Hash: checksumToBytes(0x91d1f948), Next: 2463000}}, // First DAO block
-				{2462999, ID{Hash: checksumToBytes(0x91d1f948), Next: 2463000}}, // Last DAO block
-				{2463000, ID{Hash: checksumToBytes(0x7a64da13), Next: 2675000}}, // First Tangerine block
-				{2674999, ID{Hash: checksumToBytes(0x7a64da13), Next: 2675000}}, // Last Tangerine block
-				{2675000, ID{Hash: checksumToBytes(0x3edd5b10), Next: 4370000}}, // First Spurious block
-				{4369999, ID{Hash: checksumToBytes(0x3edd5b10), Next: 4370000}}, // Last Spurious block
-				{4370000, ID{Hash: checksumToBytes(0xa00bc324), Next: 7280000}}, // First Byzantium block
-				{7279999, ID{Hash: checksumToBytes(0xa00bc324), Next: 7280000}}, // Last Byzantium block
-				{7280000, ID{Hash: checksumToBytes(0x668db0af), Next: 9069000}}, // First and last Constantinople, first Petersburg block
-				{9068999, ID{Hash: checksumToBytes(0x668db0af), Next: 9069000}}, // Last Petersburg block
-				{9069000, ID{Hash: checksumToBytes(0x879d6e30), Next: 9200000}}, // First Istanbul and first Muir Glacier block
-				{9199999, ID{Hash: checksumToBytes(0x879d6e30), Next: 9200000}}, // Last Istanbul and first Muir Glacier block
-				{9200000, ID{Hash: checksumToBytes(0xe029e991), Next: 0}},       // First Muir Glacier block
-				{10000000, ID{Hash: checksumToBytes(0xe029e991), Next: 0}},      // Future Muir Glacier block
+				{0, ID{Hash: checksumToBytes(0xfc64ec04), Next: 1150000}},         // Unsynced
+				{1149999, ID{Hash: checksumToBytes(0xfc64ec04), Next: 1150000}},   // Last Frontier block
+				{1150000, ID{Hash: checksumToBytes(0x97c2c34c), Next: 1920000}},   // First Homestead block
+				{1919999, ID{Hash: checksumToBytes(0x97c2c34c), Next: 1920000}},   // Last Homestead block
+				{1920000, ID{Hash: checksumToBytes(0x91d1f948), Next: 2463000}},   // First DAO block
+				{2462999, ID{Hash: checksumToBytes(0x91d1f948), Next: 2463000}},   // Last DAO block
+				{2463000, ID{Hash: checksumToBytes(0x7a64da13), Next: 2675000}},   // First Tangerine block
+				{2674999, ID{Hash: checksumToBytes(0x7a64da13), Next: 2675000}},   // Last Tangerine block
+				{2675000, ID{Hash: checksumToBytes(0x3edd5b10), Next: 4370000}},   // First Spurious block
+				{4369999, ID{Hash: checksumToBytes(0x3edd5b10), Next: 4370000}},   // Last Spurious block
+				{4370000, ID{Hash: checksumToBytes(0xa00bc324), Next: 7280000}},   // First Byzantium block
+				{7279999, ID{Hash: checksumToBytes(0xa00bc324), Next: 7280000}},   // Last Byzantium block
+				{7280000, ID{Hash: checksumToBytes(0x668db0af), Next: 9069000}},   // First and last Constantinople, first Petersburg block
+				{9068999, ID{Hash: checksumToBytes(0x668db0af), Next: 9069000}},   // Last Petersburg block
+				{9069000, ID{Hash: checksumToBytes(0x879d6e30), Next: 9200000}},   // First Istanbul and first Muir Glacier block
+				{9199999, ID{Hash: checksumToBytes(0x879d6e30), Next: 9200000}},   // Last Istanbul and first Muir Glacier block
+				{9200000, ID{Hash: checksumToBytes(0xe029e991), Next: 12244000}},  // First Muir Glacier block
+				{12243999, ID{Hash: checksumToBytes(0xe029e991), Next: 12244000}}, // Last Muir Glacier block
+				{12244000, ID{Hash: checksumToBytes(0x0eb440f6), Next: 0}},        // First Berlin block
+				{20000000, ID{Hash: checksumToBytes(0x0eb440f6), Next: 0}},        // Future Berlin block
 			},
 		},
 		// Ropsten test cases
@@ -80,8 +82,10 @@ func TestCreation(t *testing.T) {
 				{6485845, ID{Hash: checksumToBytes(0xd6e2149b), Next: 6485846}}, // Last Petersburg block
 				{6485846, ID{Hash: checksumToBytes(0x4bc66396), Next: 7117117}}, // First Istanbul block
 				{7117116, ID{Hash: checksumToBytes(0x4bc66396), Next: 7117117}}, // Last Istanbul block
-				{7117117, ID{Hash: checksumToBytes(0x6727ef90), Next: 0}},       // First Muir Glacier block
-				{7500000, ID{Hash: checksumToBytes(0x6727ef90), Next: 0}},       // Future
+				{7117117, ID{Hash: checksumToBytes(0x6727ef90), Next: 9812189}}, // First Muir Glacier block
+				{9812188, ID{Hash: checksumToBytes(0x6727ef90), Next: 9812189}}, // Last Muir Glacier block
+				{9812189, ID{Hash: checksumToBytes(0xa157d377), Next: 0}},       // First Berlin block
+				{10000000, ID{Hash: checksumToBytes(0xa157d377), Next: 0}},      // Future Berlin block
 			},
 		},
 		// Rinkeby test cases
@@ -100,8 +104,10 @@ func TestCreation(t *testing.T) {
 				{4321233, ID{Hash: checksumToBytes(0xe49cab14), Next: 4321234}}, // Last Constantinople block
 				{4321234, ID{Hash: checksumToBytes(0xafec6b27), Next: 5435345}}, // First Petersburg block
 				{5435344, ID{Hash: checksumToBytes(0xafec6b27), Next: 5435345}}, // Last Petersburg block
-				{5435345, ID{Hash: checksumToBytes(0xcbdb8838), Next: 0}},       // First Istanbul block
-				{6000000, ID{Hash: checksumToBytes(0xcbdb8838), Next: 0}},       // Future Istanbul block
+				{5435345, ID{Hash: checksumToBytes(0xcbdb8838), Next: 8290928}}, // First Istanbul block
+				{8290927, ID{Hash: checksumToBytes(0xcbdb8838), Next: 8290928}}, // Last Istanbul block
+				{8290928, ID{Hash: checksumToBytes(0x6910c8bd), Next: 0}},       // First Berlin block
+				{10000000, ID{Hash: checksumToBytes(0x6910c8bd), Next: 0}},      // Future Berlin block
 			},
 		},
 		// Goerli test cases
@@ -111,8 +117,10 @@ func TestCreation(t *testing.T) {
 			[]testcase{
 				{0, ID{Hash: checksumToBytes(0xa3f5ab08), Next: 1561651}},       // Unsynced, last Frontier, Homestead, Tangerine, Spurious, Byzantium, Constantinople and first Petersburg block
 				{1561650, ID{Hash: checksumToBytes(0xa3f5ab08), Next: 1561651}}, // Last Petersburg block
-				{1561651, ID{Hash: checksumToBytes(0xc25efa5c), Next: 0}},       // First Istanbul block
-				{2000000, ID{Hash: checksumToBytes(0xc25efa5c), Next: 0}},       // Future Istanbul block
+				{1561651, ID{Hash: checksumToBytes(0xc25efa5c), Next: 4460644}}, // First Istanbul block
+				{4460643, ID{Hash: checksumToBytes(0xc25efa5c), Next: 4460644}}, // Last Istanbul block
+				{4460644, ID{Hash: checksumToBytes(0x757a1c47), Next: 0}},       // First Berlin block
+				{5000000, ID{Hash: checksumToBytes(0x757a1c47), Next: 0}},       // Future Berlin block
 			},
 		},
 	}
@@ -185,11 +193,11 @@ func TestValidation(t *testing.T) {
 		// Local is mainnet Petersburg, remote is Rinkeby Petersburg.
 		{7987396, ID{Hash: checksumToBytes(0xafec6b27), Next: 0}, ErrLocalIncompatibleOrStale},
 
-		// Local is mainnet Muir Glacier, far in the future. Remote announces Gopherium (non existing fork)
+		// Local is mainnet Berlin, far in the future. Remote announces Gopherium (non existing fork)
 		// at some future block 88888888, for itself, but past block for local. Local is incompatible.
 		//
 		// This case detects non-upgraded nodes with majority hash power (typical Ropsten mess).
-		{88888888, ID{Hash: checksumToBytes(0xe029e991), Next: 88888888}, ErrLocalIncompatibleOrStale},
+		{88888888, ID{Hash: checksumToBytes(0x0eb440f6), Next: 88888888}, ErrLocalIncompatibleOrStale},
 
 		// Local is mainnet Byzantium. Remote is also in Byzantium, but announces Gopherium (non existing
 		// fork) at block 7279999, before Petersburg. Local is incompatible.
diff --git a/core/genesis.go b/core/genesis.go
index 6bcc50b050..e05e27fe17 100644
--- a/core/genesis.go
+++ b/core/genesis.go
@@ -153,6 +153,10 @@ func (e *GenesisMismatchError) Error() string {
 //
 // The returned chain configuration is never nil.
 func SetupGenesisBlock(db ethdb.Database, genesis *Genesis) (*params.ChainConfig, common.Hash, error) {
+	return SetupGenesisBlockWithOverride(db, genesis, nil)
+}
+
+func SetupGenesisBlockWithOverride(db ethdb.Database, genesis *Genesis, overrideBerlin *big.Int) (*params.ChainConfig, common.Hash, error) {
 	if genesis != nil && genesis.Config == nil {
 		return params.AllEthashProtocolChanges, common.Hash{}, errGenesisNoConfig
 	}
@@ -198,6 +202,9 @@ func SetupGenesisBlock(db ethdb.Database, genesis *Genesis) (*params.ChainConfig
 	}
 	// Get the existing chain configuration.
 	newcfg := genesis.configOrDefault(stored)
+	if overrideBerlin != nil {
+		newcfg.BerlinBlock = overrideBerlin
+	}
 	if err := newcfg.CheckConfigForkOrder(); err != nil {
 		return newcfg, common.Hash{}, err
 	}
diff --git a/core/state_transition.go b/core/state_transition.go
index 0d589a6119..d511e40bd6 100644
--- a/core/state_transition.go
+++ b/core/state_transition.go
@@ -259,7 +259,7 @@ func (st *StateTransition) TransitionDb() (*ExecutionResult, error) {
 	}
 
 	// Set up the initial access list.
-	if st.evm.ChainConfig().IsYoloV3(st.evm.Context.BlockNumber) {
+	if st.evm.ChainConfig().IsBerlin(st.evm.Context.BlockNumber) {
 		st.state.PrepareAccessList(msg.From(), msg.To(), st.evm.ActivePrecompiles(), msg.AccessList())
 	}
 
diff --git a/core/tx_pool.go b/core/tx_pool.go
index 28ac822131..4c1bd809fd 100644
--- a/core/tx_pool.go
+++ b/core/tx_pool.go
@@ -1204,7 +1204,7 @@ func (pool *TxPool) reset(oldHead, newHead *types.Header) {
 	// Update all fork indicator by next pending block number.
 	next := new(big.Int).Add(newHead.Number, big.NewInt(1))
 	pool.istanbul = pool.chainconfig.IsIstanbul(next)
-	pool.eip2718 = pool.chainconfig.IsYoloV3(next)
+	pool.eip2718 = pool.chainconfig.IsBerlin(next)
 }
 
 // promoteExecutables moves transactions that have become processable from the
diff --git a/core/types/transaction_signing.go b/core/types/transaction_signing.go
index 1645369b4f..b4594cb90b 100644
--- a/core/types/transaction_signing.go
+++ b/core/types/transaction_signing.go
@@ -40,7 +40,7 @@ type sigCache struct {
 func MakeSigner(config *params.ChainConfig, blockNumber *big.Int) Signer {
 	var signer Signer
 	switch {
-	case config.IsYoloV3(blockNumber):
+	case config.IsBerlin(blockNumber):
 		signer = NewEIP2930Signer(config.ChainID)
 	case config.IsEIP155(blockNumber):
 		signer = NewEIP155Signer(config.ChainID)
@@ -61,7 +61,7 @@ func MakeSigner(config *params.ChainConfig, blockNumber *big.Int) Signer {
 // have the current block number available, use MakeSigner instead.
 func LatestSigner(config *params.ChainConfig) Signer {
 	if config.ChainID != nil {
-		if config.YoloV3Block != nil {
+		if config.BerlinBlock != nil || config.YoloV3Block != nil {
 			return NewEIP2930Signer(config.ChainID)
 		}
 		if config.EIP155Block != nil {
diff --git a/core/vm/contracts.go b/core/vm/contracts.go
index 9ea19d38a7..4e99a51618 100644
--- a/core/vm/contracts.go
+++ b/core/vm/contracts.go
@@ -78,9 +78,9 @@ var PrecompiledContractsIstanbul = map[common.Address]PrecompiledContract{
 	common.BytesToAddress([]byte{9}): &blake2F{},
 }
 
-// PrecompiledContractsYoloV3 contains the default set of pre-compiled Ethereum
-// contracts used in the Yolo v3 test release.
-var PrecompiledContractsYoloV3 = map[common.Address]PrecompiledContract{
+// PrecompiledContractsBerlin contains the default set of pre-compiled Ethereum
+// contracts used in the Berlin release.
+var PrecompiledContractsBerlin = map[common.Address]PrecompiledContract{
 	common.BytesToAddress([]byte{1}): &ecrecover{},
 	common.BytesToAddress([]byte{2}): &sha256hash{},
 	common.BytesToAddress([]byte{3}): &ripemd160hash{},
@@ -107,7 +107,7 @@ var PrecompiledContractsBLS = map[common.Address]PrecompiledContract{
 }
 
 var (
-	PrecompiledAddressesYoloV3    []common.Address
+	PrecompiledAddressesBerlin    []common.Address
 	PrecompiledAddressesIstanbul  []common.Address
 	PrecompiledAddressesByzantium []common.Address
 	PrecompiledAddressesHomestead []common.Address
@@ -123,8 +123,8 @@ func init() {
 	for k := range PrecompiledContractsIstanbul {
 		PrecompiledAddressesIstanbul = append(PrecompiledAddressesIstanbul, k)
 	}
-	for k := range PrecompiledContractsYoloV3 {
-		PrecompiledAddressesYoloV3 = append(PrecompiledAddressesYoloV3, k)
+	for k := range PrecompiledContractsBerlin {
+		PrecompiledAddressesBerlin = append(PrecompiledAddressesBerlin, k)
 	}
 }
 
diff --git a/core/vm/evm.go b/core/vm/evm.go
index 3617d77b12..7346d76e5b 100644
--- a/core/vm/evm.go
+++ b/core/vm/evm.go
@@ -46,8 +46,8 @@ type (
 // configuration
 func (evm *EVM) ActivePrecompiles() []common.Address {
 	switch {
-	case evm.chainRules.IsYoloV3:
-		return PrecompiledAddressesYoloV3
+	case evm.chainRules.IsBerlin:
+		return PrecompiledAddressesBerlin
 	case evm.chainRules.IsIstanbul:
 		return PrecompiledAddressesIstanbul
 	case evm.chainRules.IsByzantium:
@@ -60,8 +60,8 @@ func (evm *EVM) ActivePrecompiles() []common.Address {
 func (evm *EVM) precompile(addr common.Address) (PrecompiledContract, bool) {
 	var precompiles map[common.Address]PrecompiledContract
 	switch {
-	case evm.chainRules.IsYoloV3:
-		precompiles = PrecompiledContractsYoloV3
+	case evm.chainRules.IsBerlin:
+		precompiles = PrecompiledContractsBerlin
 	case evm.chainRules.IsIstanbul:
 		precompiles = PrecompiledContractsIstanbul
 	case evm.chainRules.IsByzantium:
@@ -446,7 +446,7 @@ func (evm *EVM) create(caller ContractRef, codeAndHash *codeAndHash, gas uint64,
 	evm.StateDB.SetNonce(caller.Address(), nonce+1)
 	// We add this to the access list _before_ taking a snapshot. Even if the creation fails,
 	// the access-list change should not be rolled back
-	if evm.chainRules.IsYoloV3 {
+	if evm.chainRules.IsBerlin {
 		evm.StateDB.AddAddressToAccessList(address)
 	}
 	// Ensure there's no existing contract already at the designated address
diff --git a/core/vm/interpreter.go b/core/vm/interpreter.go
index 967db32780..0084b7d071 100644
--- a/core/vm/interpreter.go
+++ b/core/vm/interpreter.go
@@ -99,8 +99,8 @@ func NewEVMInterpreter(evm *EVM, cfg Config) *EVMInterpreter {
 	if cfg.JumpTable[STOP] == nil {
 		var jt JumpTable
 		switch {
-		case evm.chainRules.IsYoloV3:
-			jt = yoloV3InstructionSet
+		case evm.chainRules.IsBerlin:
+			jt = berlinInstructionSet
 		case evm.chainRules.IsIstanbul:
 			jt = istanbulInstructionSet
 		case evm.chainRules.IsConstantinople:
diff --git a/core/vm/jump_table.go b/core/vm/jump_table.go
index 954f657a94..d831f9300f 100644
--- a/core/vm/jump_table.go
+++ b/core/vm/jump_table.go
@@ -56,24 +56,23 @@ var (
 	byzantiumInstructionSet        = newByzantiumInstructionSet()
 	constantinopleInstructionSet   = newConstantinopleInstructionSet()
 	istanbulInstructionSet         = newIstanbulInstructionSet()
-	yoloV3InstructionSet           = newYoloV3InstructionSet()
+	berlinInstructionSet           = newBerlinInstructionSet()
 )
 
 // JumpTable contains the EVM opcodes supported at a given fork.
 type JumpTable [256]*operation
 
-// newYoloV3InstructionSet creates an instructionset containing
-// - "EIP-2315: Simple Subroutines"
-// - "EIP-2929: Gas cost increases for state access opcodes"
-func newYoloV3InstructionSet() JumpTable {
+// newBerlinInstructionSet returns the frontier, homestead, byzantium,
+// contantinople, istanbul, petersburg and berlin instructions.
+func newBerlinInstructionSet() JumpTable {
 	instructionSet := newIstanbulInstructionSet()
 	enable2315(&instructionSet) // Subroutines - https://eips.ethereum.org/EIPS/eip-2315
 	enable2929(&instructionSet) // Access lists for trie accesses https://eips.ethereum.org/EIPS/eip-2929
 	return instructionSet
 }
 
-// newIstanbulInstructionSet returns the frontier, homestead
-// byzantium, contantinople and petersburg instructions.
+// newIstanbulInstructionSet returns the frontier, homestead, byzantium,
+// contantinople, istanbul and petersburg instructions.
 func newIstanbulInstructionSet() JumpTable {
 	instructionSet := newConstantinopleInstructionSet()
 
@@ -84,7 +83,7 @@ func newIstanbulInstructionSet() JumpTable {
 	return instructionSet
 }
 
-// newConstantinopleInstructionSet returns the frontier, homestead
+// newConstantinopleInstructionSet returns the frontier, homestead,
 // byzantium and contantinople instructions.
 func newConstantinopleInstructionSet() JumpTable {
 	instructionSet := newByzantiumInstructionSet()
diff --git a/core/vm/runtime/runtime.go b/core/vm/runtime/runtime.go
index c97bdc420c..9cb69e1c76 100644
--- a/core/vm/runtime/runtime.go
+++ b/core/vm/runtime/runtime.go
@@ -65,6 +65,7 @@ func setDefaults(cfg *Config) {
 			PetersburgBlock:     new(big.Int),
 			IstanbulBlock:       new(big.Int),
 			MuirGlacierBlock:    new(big.Int),
+			BerlinBlock:         new(big.Int),
 			YoloV3Block:         nil,
 		}
 	}
@@ -113,7 +114,7 @@ func Execute(code, input []byte, cfg *Config) ([]byte, *state.StateDB, error) {
 		vmenv   = NewEnv(cfg)
 		sender  = vm.AccountRef(cfg.Origin)
 	)
-	if cfg.ChainConfig.IsYoloV3(vmenv.Context.BlockNumber) {
+	if cfg.ChainConfig.IsBerlin(vmenv.Context.BlockNumber) {
 		cfg.State.PrepareAccessList(cfg.Origin, &address, vmenv.ActivePrecompiles(), nil)
 	}
 	cfg.State.CreateAccount(address)
@@ -145,7 +146,7 @@ func Create(input []byte, cfg *Config) ([]byte, common.Address, uint64, error) {
 		vmenv  = NewEnv(cfg)
 		sender = vm.AccountRef(cfg.Origin)
 	)
-	if cfg.ChainConfig.IsYoloV3(vmenv.Context.BlockNumber) {
+	if cfg.ChainConfig.IsBerlin(vmenv.Context.BlockNumber) {
 		cfg.State.PrepareAccessList(cfg.Origin, nil, vmenv.ActivePrecompiles(), nil)
 	}
 
@@ -171,7 +172,7 @@ func Call(address common.Address, input []byte, cfg *Config) ([]byte, uint64, er
 
 	sender := cfg.State.GetOrNewStateObject(cfg.Origin)
 	statedb := cfg.State
-	if cfg.ChainConfig.IsYoloV3(vmenv.Context.BlockNumber) {
+	if cfg.ChainConfig.IsBerlin(vmenv.Context.BlockNumber) {
 		statedb.PrepareAccessList(cfg.Origin, &address, vmenv.ActivePrecompiles(), nil)
 	}
 
diff --git a/eth/backend.go b/eth/backend.go
index 044422763b..76ce5137f4 100644
--- a/eth/backend.go
+++ b/eth/backend.go
@@ -126,7 +126,7 @@ func New(stack *node.Node, config *ethconfig.Config) (*Ethereum, error) {
 	if err != nil {
 		return nil, err
 	}
-	chainConfig, genesisHash, genesisErr := core.SetupGenesisBlock(chainDb, config.Genesis)
+	chainConfig, genesisHash, genesisErr := core.SetupGenesisBlockWithOverride(chainDb, config.Genesis, config.OverrideBerlin)
 	if _, ok := genesisErr.(*params.ConfigCompatError); genesisErr != nil && !ok {
 		return nil, genesisErr
 	}
diff --git a/eth/ethconfig/config.go b/eth/ethconfig/config.go
index 841dc5e9e1..5d0eece067 100644
--- a/eth/ethconfig/config.go
+++ b/eth/ethconfig/config.go
@@ -198,6 +198,9 @@ type Config struct {
 
 	// CheckpointOracle is the configuration for checkpoint oracle.
 	CheckpointOracle *params.CheckpointOracleConfig `toml:",omitempty"`
+
+	// Berlin block override (TODO: remove after the fork)
+	OverrideBerlin *big.Int `toml:",omitempty"`
 }
 
 // CreateConsensusEngine creates a consensus engine for the given chain configuration.
diff --git a/eth/tracers/api.go b/eth/tracers/api.go
index bd995d08a9..61fe055689 100644
--- a/eth/tracers/api.go
+++ b/eth/tracers/api.go
@@ -581,8 +581,8 @@ func (api *API) standardTraceBlockToFile(ctx context.Context, block *types.Block
 		chainConfigCopy := new(params.ChainConfig)
 		*chainConfigCopy = *chainConfig
 		chainConfig = chainConfigCopy
-		if yolov3 := config.LogConfig.Overrides.YoloV3Block; yolov3 != nil {
-			chainConfig.YoloV3Block = yolov3
+		if berlin := config.LogConfig.Overrides.BerlinBlock; berlin != nil {
+			chainConfig.BerlinBlock = berlin
 			canon = false
 		}
 	}
diff --git a/les/client.go b/les/client.go
index e20519fd91..4d07f844f8 100644
--- a/les/client.go
+++ b/les/client.go
@@ -84,7 +84,7 @@ func New(stack *node.Node, config *ethconfig.Config) (*LightEthereum, error) {
 	if err != nil {
 		return nil, err
 	}
-	chainConfig, genesisHash, genesisErr := core.SetupGenesisBlock(chainDb, config.Genesis)
+	chainConfig, genesisHash, genesisErr := core.SetupGenesisBlockWithOverride(chainDb, config.Genesis, config.OverrideBerlin)
 	if _, isCompat := genesisErr.(*params.ConfigCompatError); genesisErr != nil && !isCompat {
 		return nil, genesisErr
 	}
diff --git a/light/txpool.go b/light/txpool.go
index bf5f9ff583..1296389e3b 100644
--- a/light/txpool.go
+++ b/light/txpool.go
@@ -314,7 +314,7 @@ func (pool *TxPool) setNewHead(head *types.Header) {
 	// Update fork indicator by next pending block number
 	next := new(big.Int).Add(head.Number, big.NewInt(1))
 	pool.istanbul = pool.config.IsIstanbul(next)
-	pool.eip2718 = pool.config.IsYoloV3(next)
+	pool.eip2718 = pool.config.IsBerlin(next)
 }
 
 // Stop stops the light transaction pool
diff --git a/params/config.go b/params/config.go
index 929bdbeb94..8cbfffc03c 100644
--- a/params/config.go
+++ b/params/config.go
@@ -56,18 +56,19 @@ var (
 	// MainnetChainConfig is the chain parameters to run a node on the main network.
 	MainnetChainConfig = &ChainConfig{
 		ChainID:             big.NewInt(1),
-		HomesteadBlock:      big.NewInt(1150000),
-		DAOForkBlock:        big.NewInt(1920000),
+		HomesteadBlock:      big.NewInt(1_150_000),
+		DAOForkBlock:        big.NewInt(1_920_000),
 		DAOForkSupport:      true,
-		EIP150Block:         big.NewInt(2463000),
+		EIP150Block:         big.NewInt(2_463_000),
 		EIP150Hash:          common.HexToHash("0x2086799aeebeae135c246c65021c82b4e15a2c451340993aacfd2751886514f0"),
-		EIP155Block:         big.NewInt(2675000),
-		EIP158Block:         big.NewInt(2675000),
-		ByzantiumBlock:      big.NewInt(4370000),
-		ConstantinopleBlock: big.NewInt(7280000),
-		PetersburgBlock:     big.NewInt(7280000),
-		IstanbulBlock:       big.NewInt(9069000),
-		MuirGlacierBlock:    big.NewInt(9200000),
+		EIP155Block:         big.NewInt(2_675_000),
+		EIP158Block:         big.NewInt(2_675_000),
+		ByzantiumBlock:      big.NewInt(4_370_000),
+		ConstantinopleBlock: big.NewInt(7_280_000),
+		PetersburgBlock:     big.NewInt(7_280_000),
+		IstanbulBlock:       big.NewInt(9_069_000),
+		MuirGlacierBlock:    big.NewInt(9_200_000),
+		BerlinBlock:         big.NewInt(12_244_000),
 		Ethash:              new(EthashConfig),
 	}
 
@@ -102,11 +103,12 @@ var (
 		EIP150Hash:          common.HexToHash("0x41941023680923e0fe4d74a34bdac8141f2540e3ae90623718e47d66d1ca4a2d"),
 		EIP155Block:         big.NewInt(10),
 		EIP158Block:         big.NewInt(10),
-		ByzantiumBlock:      big.NewInt(1700000),
-		ConstantinopleBlock: big.NewInt(4230000),
-		PetersburgBlock:     big.NewInt(4939394),
-		IstanbulBlock:       big.NewInt(6485846),
-		MuirGlacierBlock:    big.NewInt(7117117),
+		ByzantiumBlock:      big.NewInt(1_700_000),
+		ConstantinopleBlock: big.NewInt(4_230_000),
+		PetersburgBlock:     big.NewInt(4_939_394),
+		IstanbulBlock:       big.NewInt(6_485_846),
+		MuirGlacierBlock:    big.NewInt(7_117_117),
+		BerlinBlock:         big.NewInt(9_812_189),
 		Ethash:              new(EthashConfig),
 	}
 
@@ -141,11 +143,12 @@ var (
 		EIP150Hash:          common.HexToHash("0x9b095b36c15eaf13044373aef8ee0bd3a382a5abb92e402afa44b8249c3a90e9"),
 		EIP155Block:         big.NewInt(3),
 		EIP158Block:         big.NewInt(3),
-		ByzantiumBlock:      big.NewInt(1035301),
-		ConstantinopleBlock: big.NewInt(3660663),
-		PetersburgBlock:     big.NewInt(4321234),
-		IstanbulBlock:       big.NewInt(5435345),
+		ByzantiumBlock:      big.NewInt(1_035_301),
+		ConstantinopleBlock: big.NewInt(3_660_663),
+		PetersburgBlock:     big.NewInt(4_321_234),
+		IstanbulBlock:       big.NewInt(5_435_345),
 		MuirGlacierBlock:    nil,
+		BerlinBlock:         big.NewInt(8_290_928),
 		Clique: &CliqueConfig{
 			Period: 15,
 			Epoch:  30000,
@@ -184,8 +187,9 @@ var (
 		ByzantiumBlock:      big.NewInt(0),
 		ConstantinopleBlock: big.NewInt(0),
 		PetersburgBlock:     big.NewInt(0),
-		IstanbulBlock:       big.NewInt(1561651),
+		IstanbulBlock:       big.NewInt(1_561_651),
 		MuirGlacierBlock:    nil,
+		BerlinBlock:         big.NewInt(4_460_644),
 		Clique: &CliqueConfig{
 			Period: 15,
 			Epoch:  30000,
@@ -227,6 +231,7 @@ var (
 		PetersburgBlock:     big.NewInt(0),
 		IstanbulBlock:       big.NewInt(0),
 		MuirGlacierBlock:    nil,
+		BerlinBlock:         nil, // Don't enable Berlin directly, we're YOLOing it
 		YoloV3Block:         big.NewInt(0),
 		Clique: &CliqueConfig{
 			Period: 15,
@@ -239,16 +244,16 @@ var (
 	//
 	// This configuration is intentionally not using keyed fields to force anyone
 	// adding flags to the config to also have to set these fields.
-	AllEthashProtocolChanges = &ChainConfig{big.NewInt(1337), big.NewInt(0), nil, false, big.NewInt(0), common.Hash{}, big.NewInt(0), big.NewInt(0), big.NewInt(0), big.NewInt(0), big.NewInt(0), big.NewInt(0), nil, nil, nil, new(EthashConfig), nil}
+	AllEthashProtocolChanges = &ChainConfig{big.NewInt(1337), big.NewInt(0), nil, false, big.NewInt(0), common.Hash{}, big.NewInt(0), big.NewInt(0), big.NewInt(0), big.NewInt(0), big.NewInt(0), big.NewInt(0), big.NewInt(0), big.NewInt(0), nil, nil, new(EthashConfig), nil}
 
 	// AllCliqueProtocolChanges contains every protocol change (EIPs) introduced
 	// and accepted by the Ethereum core developers into the Clique consensus.
 	//
 	// This configuration is intentionally not using keyed fields to force anyone
 	// adding flags to the config to also have to set these fields.
-	AllCliqueProtocolChanges = &ChainConfig{big.NewInt(1337), big.NewInt(0), nil, false, big.NewInt(0), common.Hash{}, big.NewInt(0), big.NewInt(0), big.NewInt(0), big.NewInt(0), big.NewInt(0), big.NewInt(0), nil, big.NewInt(0), nil, nil, &CliqueConfig{Period: 0, Epoch: 30000}}
+	AllCliqueProtocolChanges = &ChainConfig{big.NewInt(1337), big.NewInt(0), nil, false, big.NewInt(0), common.Hash{}, big.NewInt(0), big.NewInt(0), big.NewInt(0), big.NewInt(0), big.NewInt(0), big.NewInt(0), big.NewInt(0), big.NewInt(0), nil, nil, nil, &CliqueConfig{Period: 0, Epoch: 30000}}
 
-	TestChainConfig = &ChainConfig{big.NewInt(1), big.NewInt(0), nil, false, big.NewInt(0), common.Hash{}, big.NewInt(0), big.NewInt(0), big.NewInt(0), big.NewInt(0), big.NewInt(0), big.NewInt(0), nil, big.NewInt(0), nil, new(EthashConfig), nil}
+	TestChainConfig = &ChainConfig{big.NewInt(1), big.NewInt(0), nil, false, big.NewInt(0), common.Hash{}, big.NewInt(0), big.NewInt(0), big.NewInt(0), big.NewInt(0), big.NewInt(0), big.NewInt(0), big.NewInt(0), big.NewInt(0), nil, nil, new(EthashConfig), nil}
 	TestRules       = TestChainConfig.Rules(new(big.Int))
 )
 
@@ -319,6 +324,7 @@ type ChainConfig struct {
 	PetersburgBlock     *big.Int `json:"petersburgBlock,omitempty"`     // Petersburg switch block (nil = same as Constantinople)
 	IstanbulBlock       *big.Int `json:"istanbulBlock,omitempty"`       // Istanbul switch block (nil = no fork, 0 = already on istanbul)
 	MuirGlacierBlock    *big.Int `json:"muirGlacierBlock,omitempty"`    // Eip-2384 (bomb delay) switch block (nil = no fork, 0 = already activated)
+	BerlinBlock         *big.Int `json:"berlinBlock,omitempty"`         // Berlin switch block (nil = no fork, 0 = already on berlin)
 
 	YoloV3Block *big.Int `json:"yoloV3Block,omitempty"` // YOLO v3: Gas repricings TODO @holiman add EIP references
 	EWASMBlock  *big.Int `json:"ewasmBlock,omitempty"`  // EWASM switch block (nil = no fork, 0 = already activated)
@@ -358,7 +364,7 @@ func (c *ChainConfig) String() string {
 	default:
 		engine = "unknown"
 	}
-	return fmt.Sprintf("{ChainID: %v Homestead: %v DAO: %v DAOSupport: %v EIP150: %v EIP155: %v EIP158: %v Byzantium: %v Constantinople: %v Petersburg: %v Istanbul: %v, Muir Glacier: %v, YOLO v3: %v, Engine: %v}",
+	return fmt.Sprintf("{ChainID: %v Homestead: %v DAO: %v DAOSupport: %v EIP150: %v EIP155: %v EIP158: %v Byzantium: %v Constantinople: %v Petersburg: %v Istanbul: %v, Muir Glacier: %v, Berlin: %v, YOLO v3: %v, Engine: %v}",
 		c.ChainID,
 		c.HomesteadBlock,
 		c.DAOForkBlock,
@@ -371,6 +377,7 @@ func (c *ChainConfig) String() string {
 		c.PetersburgBlock,
 		c.IstanbulBlock,
 		c.MuirGlacierBlock,
+		c.BerlinBlock,
 		c.YoloV3Block,
 		engine,
 	)
@@ -428,9 +435,9 @@ func (c *ChainConfig) IsIstanbul(num *big.Int) bool {
 	return isForked(c.IstanbulBlock, num)
 }
 
-// IsYoloV3 returns whether num is either equal to the YoloV3 fork block or greater.
-func (c *ChainConfig) IsYoloV3(num *big.Int) bool {
-	return isForked(c.YoloV3Block, num)
+// IsBerlin returns whether num is either equal to the Berlin fork block or greater.
+func (c *ChainConfig) IsBerlin(num *big.Int) bool {
+	return isForked(c.BerlinBlock, num) || isForked(c.YoloV3Block, num)
 }
 
 // IsEWASM returns whether num represents a block number after the EWASM fork
@@ -476,7 +483,7 @@ func (c *ChainConfig) CheckConfigForkOrder() error {
 		{name: "petersburgBlock", block: c.PetersburgBlock},
 		{name: "istanbulBlock", block: c.IstanbulBlock},
 		{name: "muirGlacierBlock", block: c.MuirGlacierBlock, optional: true},
-		{name: "yoloV3Block", block: c.YoloV3Block},
+		{name: "berlinBlock", block: c.BerlinBlock},
 	} {
 		if lastFork.name != "" {
 			// Next one must be higher number
@@ -540,6 +547,9 @@ func (c *ChainConfig) checkCompatible(newcfg *ChainConfig, head *big.Int) *Confi
 	if isForkIncompatible(c.MuirGlacierBlock, newcfg.MuirGlacierBlock, head) {
 		return newCompatError("Muir Glacier fork block", c.MuirGlacierBlock, newcfg.MuirGlacierBlock)
 	}
+	if isForkIncompatible(c.BerlinBlock, newcfg.BerlinBlock, head) {
+		return newCompatError("Berlin fork block", c.BerlinBlock, newcfg.BerlinBlock)
+	}
 	if isForkIncompatible(c.YoloV3Block, newcfg.YoloV3Block, head) {
 		return newCompatError("YOLOv3 fork block", c.YoloV3Block, newcfg.YoloV3Block)
 	}
@@ -613,7 +623,7 @@ type Rules struct {
 	ChainID                                                 *big.Int
 	IsHomestead, IsEIP150, IsEIP155, IsEIP158               bool
 	IsByzantium, IsConstantinople, IsPetersburg, IsIstanbul bool
-	IsYoloV3                                                bool
+	IsBerlin                                                bool
 }
 
 // Rules ensures c's ChainID is not nil.
@@ -632,6 +642,6 @@ func (c *ChainConfig) Rules(num *big.Int) Rules {
 		IsConstantinople: c.IsConstantinople(num),
 		IsPetersburg:     c.IsPetersburg(num),
 		IsIstanbul:       c.IsIstanbul(num),
-		IsYoloV3:         c.IsYoloV3(num),
+		IsBerlin:         c.IsBerlin(num),
 	}
 }
diff --git a/tests/init.go b/tests/init.go
index a2ef040786..67f706eb50 100644
--- a/tests/init.go
+++ b/tests/init.go
@@ -165,7 +165,7 @@ var Forks = map[string]*params.ChainConfig{
 		ConstantinopleBlock: big.NewInt(0),
 		PetersburgBlock:     big.NewInt(0),
 		IstanbulBlock:       big.NewInt(0),
-		YoloV3Block:         big.NewInt(0),
+		BerlinBlock:         big.NewInt(0),
 	},
 }
 
diff --git a/tests/state_test_util.go b/tests/state_test_util.go
index 03dc01459c..99681baaf1 100644
--- a/tests/state_test_util.go
+++ b/tests/state_test_util.go
@@ -24,14 +24,13 @@ import (
 	"strconv"
 	"strings"
 
-	"github.com/ethereum/go-ethereum/core/state/snapshot"
-
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/common/hexutil"
 	"github.com/ethereum/go-ethereum/common/math"
 	"github.com/ethereum/go-ethereum/core"
 	"github.com/ethereum/go-ethereum/core/rawdb"
 	"github.com/ethereum/go-ethereum/core/state"
+	"github.com/ethereum/go-ethereum/core/state/snapshot"
 	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/core/vm"
 	"github.com/ethereum/go-ethereum/crypto"