diff --git a/backend/app/db/models/uploaded_file.py b/backend/app/db/models/uploaded_file.py
index b5367305..a3ea70ca 100644
--- a/backend/app/db/models/uploaded_file.py
+++ b/backend/app/db/models/uploaded_file.py
@@ -21,6 +21,7 @@ class FileTypeEnum(enum.Enum):
     IMPROVEMENT_OPTION_EVALUATION = "improvement_option_evaluation"
     MEDIUM_TERM_IMPROVEMENT_PLAN = "medium_term_improvement_plan"
     RETROFIT_DESIGN_DOC = "retrofit_design_doc"
+    MCS_CERTIFICATE = "mcs_certificate"
     OTHER = "other"
 
 
diff --git a/backend/pashub_fetcher/core_files.py b/backend/pashub_fetcher/core_files.py
index e63511eb..1ee3046b 100644
--- a/backend/pashub_fetcher/core_files.py
+++ b/backend/pashub_fetcher/core_files.py
@@ -17,6 +17,7 @@ class CoreFiles(Enum):
     IMPROVEMENT_OPTION_EVALUATION = "Improvement Option Evaluation"
     MEDIUM_TERM_IMPROVEMENT_PLAN = "Medium Term Improvement Plan"
     RETROFIT_DESIGN_DOC = "Retrofit Design Doc"
+    MCS_CERTIFICATE = "MCS Certificate"
 
 
 _CORE_FILE_TO_FILE_TYPE: dict[CoreFiles, str] = {
@@ -32,6 +33,7 @@ _CORE_FILE_TO_FILE_TYPE: dict[CoreFiles, str] = {
     CoreFiles.IMPROVEMENT_OPTION_EVALUATION: FileTypeEnum.IMPROVEMENT_OPTION_EVALUATION.value,
     CoreFiles.MEDIUM_TERM_IMPROVEMENT_PLAN: FileTypeEnum.MEDIUM_TERM_IMPROVEMENT_PLAN.value,
     CoreFiles.RETROFIT_DESIGN_DOC: FileTypeEnum.RETROFIT_DESIGN_DOC.value,
+    CoreFiles.MCS_CERTIFICATE: FileTypeEnum.MCS_CERTIFICATE.value,
 }
 
 
@@ -56,6 +58,7 @@ def get_core_file_type(
         CoreFiles.RETROFIT_DESIGN_DOC,
         CoreFiles.IMPROVEMENT_OPTION_EVALUATION,
         CoreFiles.MEDIUM_TERM_IMPROVEMENT_PLAN,
+        CoreFiles.MCS_CERTIFICATE,
     }
 
     for core_file in CoreFiles:
@@ -68,7 +71,9 @@ def get_core_file_type(
     return None
 
 
-def get_file_type_string(filename: str) -> Optional[str]:
+def get_file_type_string(
+    filename: str, evidence_category: Optional[str] = None
+) -> Optional[str]:
     core_file: Optional[CoreFiles] = get_core_file_type(filename)
 
     if core_file is None:
diff --git a/backend/pashub_fetcher/tests/test_core_files.py b/backend/pashub_fetcher/tests/test_core_files.py
index 3c1d11b8..c14a5a83 100644
--- a/backend/pashub_fetcher/tests/test_core_files.py
+++ b/backend/pashub_fetcher/tests/test_core_files.py
@@ -183,3 +183,36 @@ def test_core_file_for_osm_fallback_does_not_fire_when_evidence_category_present
 
     # Assert
     assert result is None
+
+
+def test_core_file_for_mcs_compliance_certificate_returns_mcs_certificate() -> None:
+    # Arrange
+    filename = "MCS_cert_job123.pdf"
+
+    # Act
+    result = get_core_file_type(filename, evidence_category="mcs compliance certificate")
+
+    # Assert
+    assert result == CoreFiles.MCS_CERTIFICATE
+
+
+def test_core_file_for_mcs_compliance_certificate_is_case_insensitive() -> None:
+    # Arrange
+    filename = "some_cert.pdf"
+
+    # Act
+    result = get_core_file_type(filename, evidence_category="MCS Compliance Certificate")
+
+    # Assert
+    assert result == CoreFiles.MCS_CERTIFICATE
+
+
+def test_get_file_type_string_with_mcs_evidence_category_returns_mcs_certificate() -> None:
+    # Arrange
+    filename = "some_cert.pdf"
+
+    # Act
+    result = get_file_type_string(filename, evidence_category="MCS Compliance Certificate")
+
+    # Assert
+    assert result == "mcs_certificate"