diff --git a/.github/scripts/filter_core_ids_by_standard.py b/.github/scripts/filter_core_ids_by_standard.py
new file mode 100644
index 000000000..8d2a961f5
--- /dev/null
+++ b/.github/scripts/filter_core_ids_by_standard.py
@@ -0,0 +1,101 @@
+#!/usr/bin/env python3
+"""Filter Published CORE rule IDs by Authorities.Standards.Name."""
+
+from __future__ import annotations
+
+import argparse
+import sys
+from pathlib import Path
+
+import yaml
+
+
+def parse_args() -> argparse.Namespace:
+    parser = argparse.ArgumentParser(
+        description="Return space-separated CORE IDs for Published rules matching standards."
+    )
+    parser.add_argument(
+        "--rules-root",
+        required=True,
+        help="Repository root containing Published/",
+    )
+    parser.add_argument(
+        "--standards",
+        nargs="+",
+        required=True,
+        help="Standards to match from Authorities[].Standards[].Name",
+    )
+    parser.add_argument(
+        "--core-ids",
+        default="",
+        help="Optional space-separated CORE IDs to intersect with the standard filter.",
+    )
+    return parser.parse_args()
+
+
+def iter_published_rule_files(rules_root: Path) -> list[Path]:
+    published_dir = rules_root / "Published"
+    files: list[Path] = []
+    for pattern in ("**/rule.yml", "**/rule.yaml"):
+        files.extend(published_dir.glob(pattern))
+    return sorted(set(files))
+
+
+def rule_matches_standard(rule: dict, target_standards: set[str]) -> bool:
+    for authority in rule.get("Authorities") or []:
+        if not isinstance(authority, dict):
+            continue
+        for standard in authority.get("Standards") or []:
+            if not isinstance(standard, dict):
+                continue
+            standard_name = str(standard.get("Name") or "").strip().upper()
+            if standard_name in target_standards:
+                return True
+    return False
+
+
+def collect_filtered_core_ids(rules_root: Path, standards: list[str]) -> list[str]:
+    target_standards = {name.strip().upper() for name in standards if name.strip()}
+    core_ids: list[str] = []
+
+    for rule_file in iter_published_rule_files(rules_root):
+        with rule_file.open("r", encoding="utf-8") as handle:
+            rule = yaml.safe_load(handle) or {}
+        if not isinstance(rule, dict):
+            continue
+        if not rule_matches_standard(rule, target_standards):
+            continue
+
+        core = rule.get("Core") or {}
+        if not isinstance(core, dict):
+            continue
+        core_id = str(core.get("Id") or "").strip()
+        if core_id:
+            core_ids.append(core_id)
+    return core_ids
+
+
+def intersect_with_requested(core_ids: list[str], requested_core_ids: str) -> list[str]:
+    requested = requested_core_ids.split()
+    if not requested:
+        return core_ids
+
+    allowed = set(core_ids)
+    return [core_id for core_id in requested if core_id in allowed]
+
+
+def main() -> int:
+    args = parse_args()
+    rules_root = Path(args.rules_root)
+    if not rules_root.is_dir():
+        print(f"rules-root does not exist: {rules_root}", file=sys.stderr)
+        return 1
+
+    filtered_core_ids = collect_filtered_core_ids(rules_root, args.standards)
+    output_core_ids = intersect_with_requested(filtered_core_ids, args.core_ids)
+    print(" ".join(output_core_ids))
+    return 0
+
+
+if __name__ == "__main__":
+    raise SystemExit(main())
diff --git a/.github/workflows/update-published-results.yml b/.github/workflows/update-published-results.yml
index ba0c5e14b..fc229a858 100644
--- a/.github/workflows/update-published-results.yml
+++ b/.github/workflows/update-published-results.yml
@@ -79,20 +79,38 @@ jobs:
         run: venv/bin/pip install tabulate jmespath pyyaml ruamel.yaml
 
       # -----------------------------------------------------------------------
-      # 4. Run the engine for every Published rule, writing actual results.csv
-      #    directly into each case's results/ directory (overwriting the old baseline)
+      # 4. Run the engine for Published rules filtered by Authorities.Standards.Name,
+      #    writing actual results.csv directly into each case's results/ directory
+      #    (overwriting the old baseline)
       # -----------------------------------------------------------------------
       - name: Run engine and write results
         id: run_engine
         continue-on-error: true
         run: |
           chmod +x .github/scripts/run_validation.sh
+          FILTER_STANDARDS=("USDM" "TIG")
+          mapfile -t FILTER_RESULT < <(venv/bin/python .github/scripts/filter_core_ids_by_standard.py \
+            --rules-root "$(pwd)" \
+            --standards "${FILTER_STANDARDS[@]}" \
+            --core-ids "${{ inputs.core_ids }}")
+          FILTERED_CORE_IDS="${FILTER_RESULT[0]}"
+          CORE_IDS_TO_RUN="${FILTER_RESULT[1]}"
+
+          if [ -z "$FILTERED_CORE_IDS" ]; then
+            echo "No Published rules found for standards: ${FILTER_STANDARDS[*]}"
+            exit 0
+          fi
 
-          CORE_IDS_ARG=""
-          if [ -n "${{ inputs.core_ids }}" ]; then
-            CORE_IDS_ARG="--core-ids ${{ inputs.core_ids }}"
+          if [ -z "$CORE_IDS_TO_RUN" ]; then
+            echo "No requested core_ids matched Published rules for standards: ${FILTER_STANDARDS[*]}"
+            exit 0
           fi
 
+          echo "Running validation for standards: ${FILTER_STANDARDS[*]}"
+          echo "Rule count: $(echo "$CORE_IDS_TO_RUN" | wc -w | tr -d ' ')"
+
+          CORE_IDS_ARG="--core-ids $CORE_IDS_TO_RUN"
+
           ENGINE_DIR_OVERRIDE="$(pwd)/engine" \
           venv/bin/python engine/scripts/validate_published_rules.py \
             --rules-root "$(pwd)" \