diff --git a/.github/workflows/unit-tests.yaml b/.github/workflows/unit-tests.yaml
index 574389af..dddde3af 100644
--- a/.github/workflows/unit-tests.yaml
+++ b/.github/workflows/unit-tests.yaml
@@ -7,6 +7,8 @@ jobs:
   run-unit-tests:
     name: Run unit tests
     runs-on: ubuntu-latest
+    env:
+      CHROME_BIN_PATH: /usr/foo/chromium
     steps:
       - name: Check out code
         uses: actions/checkout@v6
diff --git a/process_report/invoices/pi_specific_invoice.py b/process_report/invoices/pi_specific_invoice.py
index 04dfade1..c2ddf53c 100644
--- a/process_report/invoices/pi_specific_invoice.py
+++ b/process_report/invoices/pi_specific_invoice.py
@@ -1,5 +1,4 @@
 import os
-import sys
 from dataclasses import dataclass
 import subprocess
 import tempfile
@@ -10,10 +9,10 @@
 
 import process_report.invoices.invoice as invoice
 import process_report.util as util
+from process_report.settings import invoice_settings
 
 
 TEMPLATE_DIR_PATH = "process_report/templates"
-CHROME_BIN_PATH = os.environ.get("CHROME_BIN_PATH", "/usr/bin/chromium")
 
 
 logger = logging.getLogger(__name__)
@@ -134,17 +133,12 @@ def _create_html_invoice(temp_fd):
             temp_fd.flush()
 
         def _create_pdf_invoice(temp_fd_name):
-            if not os.path.exists(CHROME_BIN_PATH):
-                sys.exit(
-                    f"Chrome binary does not exist at {CHROME_BIN_PATH}. Make sure the env var CHROME_BIN_PATH is set correctly and that Google Chrome is installed"
-                )
-
             invoice_pdf_path = (
                 f"{self.name}/{pi_instituition}_{pi}_{self.invoice_month}.pdf"
             )
             subprocess.run(
                 [
-                    CHROME_BIN_PATH,
+                    invoice_settings.chrome_bin_path,
                     "--headless",
                     "--no-sandbox",
                     f"--print-to-pdf={invoice_pdf_path}",
diff --git a/process_report/process_report.py b/process_report/process_report.py
index d0cd4679..98ac8aa3 100644
--- a/process_report/process_report.py
+++ b/process_report/process_report.py
@@ -50,7 +50,7 @@ def validate_required_env_vars(required_env_vars):
 
 def main():
     """Remove non-billable PIs and projects"""
-    required_env_vars = []
+    required_env_vars = ["CHROME_BIN_PATH"]
     if not invoice_settings.coldfront_api_filepath:
         required_env_vars.extend(["KEYCLOAK_CLIENT_ID", "KEYCLOAK_CLIENT_SECRET"])
     validate_required_env_vars(required_env_vars)
diff --git a/process_report/settings.py b/process_report/settings.py
index be9f5ffa..742bcdfb 100644
--- a/process_report/settings.py
+++ b/process_report/settings.py
@@ -18,6 +18,8 @@ class Settings(BaseSettings):
     fetch_from_s3: bool = True
     upload_to_s3: bool = False
 
+    chrome_bin_path: str | None = None
+
     # S3 Files
     pi_remote_filepath: str = "PIs/PI.csv"
     alias_remote_filepath: str = "PIs/alias.csv"
diff --git a/process_report/tests/unit/invoices/test_pi_specific_invoice.py b/process_report/tests/unit/invoices/test_pi_specific_invoice.py
index a161ef4d..9f8eead7 100644
--- a/process_report/tests/unit/invoices/test_pi_specific_invoice.py
+++ b/process_report/tests/unit/invoices/test_pi_specific_invoice.py
@@ -3,7 +3,6 @@
 import pandas
 
 from process_report.tests import util as test_utils
-from process_report.invoices.pi_specific_invoice import CHROME_BIN_PATH
 
 
 class TestPISpecificInvoice(TestCase):
@@ -155,7 +154,7 @@ def test_export_pi(self, mock_subprocess_run, mock_path_exists, mock_filter_cols
             for i, pi_pdf_path in enumerate([pi_pdf_1, pi_pdf_2]):
                 chrome_arglist, _ = mock_subprocess_run.call_args_list[i]
                 answer_arglist = [
-                    CHROME_BIN_PATH,
+                    "/usr/foo/chromium",  # Defined in unit-tests.yaml
                     "--headless",
                     "--no-sandbox",
                     f"--print-to-pdf={pi_pdf_path}",