diff --git a/packages/testing/src/execution_testing/forks/forks/forks.py b/packages/testing/src/execution_testing/forks/forks/forks.py
index 4e66d9bf95..7e650a821d 100644
--- a/packages/testing/src/execution_testing/forks/forks/forks.py
+++ b/packages/testing/src/execution_testing/forks/forks/forks.py
@@ -2211,14 +2211,6 @@ def block_rlp_size_limit(
         safety_margin = 2_097_152
         return max_block_size - safety_margin
 
-    @classmethod
-    def is_deployed(cls) -> bool:
-        """
-        Flag that the fork has not been deployed to mainnet; it is under active
-        development.
-        """
-        return False
-
     @classmethod
     def valid_opcodes(
         cls, *, block_number: int = 0, timestamp: int = 0
@@ -2405,6 +2397,11 @@ class BPO3(BPO2, bpo_fork=True):
     For testing purposes only.
     """
 
+    @classmethod
+    def is_deployed(cls) -> bool:
+        """BPO3 is a pseudo fork for testing, not deployed to mainnet."""
+        return False
+
     @classmethod
     def blob_base_fee_update_fraction(
         cls, *, block_number: int = 0, timestamp: int = 0
diff --git a/packages/testing/src/execution_testing/forks/helpers.py b/packages/testing/src/execution_testing/forks/helpers.py
index fe94bdb3cb..b86c2bc46f 100644
--- a/packages/testing/src/execution_testing/forks/helpers.py
+++ b/packages/testing/src/execution_testing/forks/helpers.py
@@ -76,11 +76,12 @@ def get_deployed_forks() -> List[Type[BaseFork]]:
     """
     Return list of all the fork classes implemented by `execution_testing.forks`
     that have been deployed to mainnet, chronologically ordered by deployment.
+    BPO (Blob Parameter Only) forks are excluded as they are handled separately.
     """
     return [
         fork
         for fork in get_forks()
-        if fork.is_deployed() and not fork.ignore()
+        if fork.is_deployed() and not fork.ignore() and not fork.bpo_fork()
     ]
 
 
diff --git a/packages/testing/src/execution_testing/forks/tests/test_forks.py b/packages/testing/src/execution_testing/forks/tests/test_forks.py
index b5a91ef81f..f945fad0a6 100644
--- a/packages/testing/src/execution_testing/forks/tests/test_forks.py
+++ b/packages/testing/src/execution_testing/forks/tests/test_forks.py
@@ -8,6 +8,7 @@
 from execution_testing.base_types import BlobSchedule
 
 from ..forks.forks import (
+    Amsterdam,
     BPO1,
     BPO2,
     BPO3,
@@ -49,9 +50,9 @@
 from ..transition_base_fork import transition_fork
 
 FIRST_DEPLOYED = Frontier
-LAST_DEPLOYED = Prague
-LAST_DEVELOPMENT = Osaka
-DEVELOPMENT_FORKS = [Osaka]
+LAST_DEPLOYED = Osaka
+LAST_DEVELOPMENT = Amsterdam
+DEVELOPMENT_FORKS = [Amsterdam]
 
 
 def test_transition_forks() -> None: