diff --git a/scripts/pyard b/scripts/pyard
index 5c02bb9..10a46c6 100755
--- a/scripts/pyard
+++ b/scripts/pyard
@@ -26,7 +26,7 @@ import sys
 
 from pyard.constants import VALID_REDUCTION_TYPES
 import pyard.misc
-from pyard.exceptions import InvalidAlleleError, InvalidTypingError
+from pyard.exceptions import InvalidAlleleError, InvalidTypingError, InvalidMACError
 from pyard.misc import get_data_dir, get_imgt_version
 
 if __name__ == "__main__":
@@ -70,6 +70,12 @@ if __name__ == "__main__":
         help="Validate the provided GL String",
     )
     parser.add_argument("--cwd", dest="cwd", help="Perform CWD redux")
+    parser.add_argument(
+        "--expand-mac", dest="expand_mac", help="Expand MAC to Allele List"
+    )
+    parser.add_argument(
+        "--lookup-mac", dest="lookup_mac", help="Lookup MAC for an Allele List"
+    )
 
     args = parser.parse_args()
 
@@ -89,6 +95,24 @@ if __name__ == "__main__":
             print(f"{mapping[0]} = {'/'.join(mapping[1])}")
         sys.exit(0)
 
+    # Handle --expand-mac option
+    if args.expand_mac:
+        try:
+            allele_list = ard.expand_mac(args.expand_mac)
+            print(allele_list)
+        except InvalidMACError as e:
+            print(e.message, file=sys.stderr)
+        sys.exit(0)
+
+    # Handle --lookup-mac option
+    if args.lookup_mac:
+        try:
+            mac = ard.lookup_mac(args.lookup_mac)
+            print(mac)
+        except InvalidMACError as e:
+            print(e.message, file=sys.stderr)
+        sys.exit(0)
+
     try:
         if args.validate:
             ard.validate(args.cwd)