diff --git a/spartan/environments/alpha-net.env b/spartan/environments/alpha-net.env
index d177ed4baeaa..6e4a2273390a 100644
--- a/spartan/environments/alpha-net.env
+++ b/spartan/environments/alpha-net.env
@@ -66,6 +66,7 @@ AZTEC_SLASHING_QUORUM=5
 AZTEC_SLASHING_EXECUTION_DELAY_IN_ROUNDS=0
 AZTEC_SLASHING_OFFSET_IN_ROUNDS=1
 AZTEC_LOCAL_EJECTION_THRESHOLD=90000000000000000000
+SPONSORED_FPC=true
 
 SEQ_MAX_TX_PER_CHECKPOINT=72
 SEQ_MIN_TX_PER_BLOCK=0
diff --git a/spartan/environments/next-scenario.env b/spartan/environments/next-scenario.env
index fcfb9f34d893..0a2bc1652845 100644
--- a/spartan/environments/next-scenario.env
+++ b/spartan/environments/next-scenario.env
@@ -36,6 +36,7 @@ AZTEC_SLASHING_ROUND_SIZE_IN_EPOCHS=1
 AZTEC_SLASHING_QUORUM=17
 AZTEC_SLASHING_OFFSET_IN_ROUNDS=2
 AZTEC_LOCAL_EJECTION_THRESHOLD=90000000000000000000
+SPONSORED_FPC=true
 
 AZTEC_GOVERNANCE_PROPOSER_QUORUM=11
 AZTEC_GOVERNANCE_PROPOSER_ROUND_SIZE=20
diff --git a/spartan/environments/prove-n-tps-fake.env b/spartan/environments/prove-n-tps-fake.env
index 8ce3dbb559fe..920909247f34 100644
--- a/spartan/environments/prove-n-tps-fake.env
+++ b/spartan/environments/prove-n-tps-fake.env
@@ -8,6 +8,7 @@ AZTEC_PROOF_SUBMISSION_EPOCHS=1
 AZTEC_LAG_IN_EPOCHS_FOR_VALIDATOR_SET=1
 AZTEC_LAG_IN_EPOCHS_FOR_RANDAO=1
 AZTEC_MANA_TARGET=1000000000 # 1B mana
+SPONSORED_FPC=true
 
 CREATE_ETH_DEVNET=true
 DESTROY_NAMESPACE=true
diff --git a/spartan/environments/prove-n-tps-real.env b/spartan/environments/prove-n-tps-real.env
index e76e375845df..e914ddeebff5 100644
--- a/spartan/environments/prove-n-tps-real.env
+++ b/spartan/environments/prove-n-tps-real.env
@@ -8,6 +8,7 @@ AZTEC_PROOF_SUBMISSION_EPOCHS=1
 AZTEC_LAG_IN_EPOCHS_FOR_VALIDATOR_SET=1
 AZTEC_LAG_IN_EPOCHS_FOR_RANDAO=1
 AZTEC_MANA_TARGET=1000000000 # 1B mana
+SPONSORED_FPC=true
 
 CREATE_ETH_DEVNET=true
 DESTROY_NAMESPACE=true
diff --git a/spartan/environments/scenario.local.env b/spartan/environments/scenario.local.env
index 90402965d516..8fcc338a7183 100644
--- a/spartan/environments/scenario.local.env
+++ b/spartan/environments/scenario.local.env
@@ -20,6 +20,7 @@ AZTEC_SLASH_AMOUNT_MEDIUM=10000000000000000000
 AZTEC_SLASH_AMOUNT_LARGE=15000000000000000000
 AZTEC_LAG_IN_EPOCHS_FOR_VALIDATOR_SET=2
 AZTEC_LAG_IN_EPOCHS_FOR_RANDAO=2
+SPONSORED_FPC=true
 
 R2_ACCESS_KEY_ID=""
 R2_SECRET_ACCESS_KEY=""
diff --git a/spartan/environments/ten-tps-long-epoch.env b/spartan/environments/ten-tps-long-epoch.env
index ed85befac3a3..819bfa4e69f2 100644
--- a/spartan/environments/ten-tps-long-epoch.env
+++ b/spartan/environments/ten-tps-long-epoch.env
@@ -20,6 +20,7 @@ DESTROY_AZTEC_INFRA=true
 
 AZTEC_LAG_IN_EPOCHS_FOR_VALIDATOR_SET=1
 AZTEC_LAG_IN_EPOCHS_FOR_RANDAO=1
+SPONSORED_FPC=true
 
 OTEL_COLLECTOR_ENDPOINT=REPLACE_WITH_GCP_SECRET
 
diff --git a/spartan/environments/ten-tps-short-epoch.env b/spartan/environments/ten-tps-short-epoch.env
index e475bee370d8..e25967860346 100644
--- a/spartan/environments/ten-tps-short-epoch.env
+++ b/spartan/environments/ten-tps-short-epoch.env
@@ -20,6 +20,7 @@ DESTROY_AZTEC_INFRA=true
 
 AZTEC_LAG_IN_EPOCHS_FOR_VALIDATOR_SET=1
 AZTEC_LAG_IN_EPOCHS_FOR_RANDAO=1
+SPONSORED_FPC=true
 
 OTEL_COLLECTOR_ENDPOINT=REPLACE_WITH_GCP_SECRET
 
diff --git a/spartan/environments/tps-scenario.env b/spartan/environments/tps-scenario.env
index c99e2e488f91..308455667709 100644
--- a/spartan/environments/tps-scenario.env
+++ b/spartan/environments/tps-scenario.env
@@ -6,6 +6,7 @@ AZTEC_EPOCH_DURATION=8
 AZTEC_SLOT_DURATION=72
 AZTEC_PROOF_SUBMISSION_EPOCHS=2
 AZTEC_LAG_IN_EPOCHS=1
+SPONSORED_FPC=true
 
 CREATE_ETH_DEVNET=false
 L1_NETWORK=sepolia