diff --git a/ops/56.add-3l-to-truehd-exceptions-add-oldt-to-bad-dual-groups.sql b/ops/56.add-3l-to-truehd-exceptions-add-oldt-to-bad-dual-groups.sql
new file mode 100644
index 0000000..1dc362a
--- /dev/null
+++ b/ops/56.add-3l-to-truehd-exceptions-add-oldt-to-bad-dual-groups.sql
@@ -0,0 +1,28 @@
+-- @operation: export
+-- @entity: batch
+-- @name: Add 3L to TrueHD Exceptions / Add OldT to Bad Dual Groups
+-- @exportedAt: 2026-08-19T19:53:41.634Z
+-- @opIds: 13270, 13273, 13276, 13279, 13282
+
+-- --- BEGIN op 13270 ( update regular_expression "ATMOS" )
+update "regular_expressions" set "pattern" = '\b(ATMOS|CtrlHD|W4NK3R|HQMUX|DON|3L)(\b|\d)' where "name" = 'ATMOS' and "pattern" = '\b(ATMOS|CtrlHD|W4NK3R|HQMUX|DON)(\b|\d)';
+-- --- END op 13270
+
+-- --- BEGIN op 13273 ( update regular_expression "Not Atmos Group (non-5.1)" )
+update "regular_expressions" set "pattern" = '^(?!.*[^0-9]5[ .][0-1]\b).*\b(HQMUX|W4NK3R|DON|CtrlHD|3L)\b' where "name" = 'Not Atmos Group (non-5.1)' and "pattern" = '(?!.*[^0-9]5[ .][0-1]\b).*\b(HQMUX|W4NK3R|DON|CtrlHD)\b';
+-- --- END op 13273
+
+-- --- BEGIN op 13276 ( create regular_expression "OldT" )
+insert into "regular_expressions" ("name", "pattern", "description", "regex101_id") values ('OldT', '[.]heb\b', NULL, NULL);
+-- --- END op 13276
+
+-- --- BEGIN op 13279 ( update regular_expression "OldT" )
+update "regular_expressions" set "pattern" = '^(OldT)$' where "name" = 'OldT' and "pattern" = '[.]heb\b';
+-- --- END op 13279
+
+-- --- BEGIN op 13282 ( update custom_format "Bad Dual Groups" )
+INSERT INTO custom_format_conditions (custom_format_name, name, type, arr_type, negate, required)
+VALUES ('Bad Dual Groups', 'OldT', 'release_group', 'all', 0, 0);
+
+INSERT INTO condition_patterns (custom_format_name, condition_name, regular_expression_name) VALUES ('Bad Dual Groups', 'OldT', 'OldT');
+-- --- END op 13282