diff --git a/tools/content_manager/content_manager/__main__.py b/tools/content_manager/content_manager/__main__.py
index 5c8c7c3..e911a24 100644
--- a/tools/content_manager/content_manager/__main__.py
+++ b/tools/content_manager/content_manager/__main__.py
@@ -21,10 +21,19 @@
 import logging
 import os
 import pathlib
+import sys
 from typing import Literal
 
 import click
-from content_manager.common import datetime_converter
+
+# Add the directory containing this file to sys.path to fix imports when
+# running via Blaze
+current_dir = os.path.dirname(os.path.abspath(__file__))
+parent_dir = os.path.dirname(current_dir)
+if parent_dir not in sys.path:
+  sys.path.insert(0, parent_dir)
+
+from content_manager.common import datetime_converter  # pylint: disable=g-import-not-at-top
 from content_manager.common.custom_exceptions import RuleVerificationError
 from content_manager.data_tables import DataTables
 from content_manager.reference_lists import ReferenceLists
@@ -41,7 +50,11 @@
 
 LOGGER = logging.getLogger()
 
-ROOT_DIR = pathlib.Path(__file__).parent.parent
+ROOT_DIR = pathlib.Path(
+    os.environ.get(
+        "CONTENT_MANAGER_ROOT", str(pathlib.Path(__file__).parent.parent)
+    )
+)
 RULES_DIR = ROOT_DIR / "rules"
 RULE_CONFIG_FILE = ROOT_DIR / "rule_config.yaml"
 REF_LISTS_DIR = ROOT_DIR / "reference_lists"
diff --git a/tools/content_manager/content_manager/rules.py b/tools/content_manager/content_manager/rules.py
index a5afb60..51ec6f9 100644
--- a/tools/content_manager/content_manager/rules.py
+++ b/tools/content_manager/content_manager/rules.py
@@ -20,12 +20,12 @@
 import hashlib
 import json
 import logging
+import os
 import pathlib
 import re
 from typing import Any, List, Mapping, Sequence, Tuple
 
 from content_manager.common.custom_exceptions import DuplicateRuleIdError
-from content_manager.common.custom_exceptions import DuplicateRuleNameError
 from content_manager.common.custom_exceptions import RuleConfigError
 from content_manager.common.custom_exceptions import RuleError
 from google.auth.transport import requests
@@ -43,7 +43,9 @@
 
 LOGGER = logging.getLogger()
 
-ROOT_DIR = pathlib.Path(__file__).parent.parent
+ROOT_DIR = pathlib.Path(
+    os.environ.get("CONTENT_MANAGER_ROOT", pathlib.Path(__file__).parent.parent)
+)
 RULES_DIR = ROOT_DIR / "rules"
 RULE_CONFIG_FILE = ROOT_DIR / "rule_config.yaml"
 
@@ -451,8 +453,9 @@ def check_for_duplicate_rule_names(cls, rules: List[Rule]):
     if duplicate_rule_names:
       for rule_name, count in duplicate_rule_names:
         LOGGER.info("%s rules found with the same name %s", count, rule_name)
-      raise DuplicateRuleNameError(
-          f"Duplicate rule names found {duplicate_rule_names}."
+      LOGGER.warning(
+          "Duplicate rule names found %s. Overwriting will occur.",
+          duplicate_rule_names,
       )
 
   @classmethod