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LDC-E5303 — Enactment basis is not declared

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# LDC-E5303 — Enactment basis is not declared

## What it means

A subordinate act draws its competence from a power norm of the
authorizing act, and the chain checker must see that reference: an act
with no declared basis gives the checker nothing to reconcile. Where the
check requires a basis, silence is a refusal — the chain cannot be
established for an act that names no ground.

Declare the basis: a reference to the power norm of the authorizing act
that the issuance exercises.

## Example

```run
{"argv": ["check-delegation", "$ROOT/sub.json", "$ROOT/parent.json", "--organ", "urn:org:fixture:ministry-health", "--require-basis"], "files": {"sub.json": "{\"nodes\": [{\"kind\": \"source_work\", \"id\": \"urn:law:fixture:delegation:sub#ORDER\", \"package\": \"urn:law:fixture:delegation:sub\", \"sourceKind\": \"urn:law:fixture:delegation:sub#order\", \"regulates\": [\"urn:law:fixture:delegation:parent#ProcurementProcedure\"]}, {\"kind\": \"source_edition\", \"id\": \"urn:law:fixture:delegation:sub#ORDER_ED\", \"work\": \"urn:law:fixture:delegation:sub#ORDER\", \"package\": \"urn:law:fixture:delegation:sub\", \"lifecycle\": [{\"status\": \"adopted\", \"extent\": \"2026-05-01\"}, {\"status\": \"in_force\", \"extent\": \"2026-06-01\"}]}]}", "parent.json": "{\"nodes\": [{\"kind\": \"source_work\", \"id\": \"urn:law:fixture:delegation:parent#LAW\", \"package\": \"urn:law:fixture:delegation:parent\", \"sourceKind\": \"urn:law:fixture:delegation:parent#law\"}, {\"kind\": \"source_edition\", \"id\": \"urn:law:fixture:delegation:parent#LAW_ED\", \"work\": \"urn:law:fixture:delegation:parent#LAW\", \"package\": \"urn:law:fixture:delegation:parent\", \"lifecycle\": [{\"status\": \"in_force\", \"extent\": \"2020-01-01\"}, {\"status\": \"repealed\", \"extent\": \"2027-01-01\"}]}, {\"kind\": \"norm_template\", \"id\": \"urn:law:fixture:delegation:parent#ApproveProcurementRules\", \"package\": \"urn:law:fixture:delegation:parent\", \"modality\": \"power\", \"payload\": {\"kind\": \"power\", \"holder\": {\"kind\": \"entity_ref\", \"id\": \"urn:org:fixture:ministry-health\"}, \"exercise\": {\"kind\": \"call\", \"function\": \"urn:law:fixture:delegation:parent#approve_rules\", \"args\": [{\"kind\": \"entity_ref\", \"id\": \"urn:org:fixture:ministry-health\"}]}, \"effect\": {\"kind\": \"create\", \"after\": {\"kind\": \"literal\", \"polarity\": \"positive\", \"predicate\": \"urn:law:fixture:delegation:parent#rules_in_force\", \"args\": []}}, \"subject\": [\"urn:law:fixture:delegation:parent#ProcurementProcedure\"]}}]}"}, "expect": "LDC-E5303"}
```

## Fix

```run
{"argv": ["check-delegation", "$ROOT/sub.json", "$ROOT/parent.json", "--organ", "urn:org:fixture:ministry-health"], "files": {"sub.json": "{\"nodes\": [{\"kind\": \"source_work\", \"id\": \"urn:law:fixture:delegation:sub#ORDER\", \"package\": \"urn:law:fixture:delegation:sub\", \"sourceKind\": \"urn:law:fixture:delegation:sub#order\", \"regulates\": [\"urn:law:fixture:delegation:parent#ProcurementProcedure\"], \"basis\": [\"urn:law:fixture:delegation:parent#ApproveProcurementRules\"]}, {\"kind\": \"source_edition\", \"id\": \"urn:law:fixture:delegation:sub#ORDER_ED\", \"work\": \"urn:law:fixture:delegation:sub#ORDER\", \"package\": \"urn:law:fixture:delegation:sub\", \"lifecycle\": [{\"status\": \"adopted\", \"extent\": \"2026-05-01\"}, {\"status\": \"in_force\", \"extent\": \"2026-06-01\"}]}]}", "parent.json": "{\"nodes\": [{\"kind\": \"source_work\", \"id\": \"urn:law:fixture:delegation:parent#LAW\", \"package\": \"urn:law:fixture:delegation:parent\", \"sourceKind\": \"urn:law:fixture:delegation:parent#law\"}, {\"kind\": \"source_edition\", \"id\": \"urn:law:fixture:delegation:parent#LAW_ED\", \"work\": \"urn:law:fixture:delegation:parent#LAW\", \"package\": \"urn:law:fixture:delegation:parent\", \"lifecycle\": [{\"status\": \"in_force\", \"extent\": \"2020-01-01\"}, {\"status\": \"repealed\", \"extent\": \"2027-01-01\"}]}, {\"kind\": \"norm_template\", \"id\": \"urn:law:fixture:delegation:parent#ApproveProcurementRules\", \"package\": \"urn:law:fixture:delegation:parent\", \"modality\": \"power\", \"payload\": {\"kind\": \"power\", \"holder\": {\"kind\": \"entity_ref\", \"id\": \"urn:org:fixture:ministry-health\"}, \"exercise\": {\"kind\": \"call\", \"function\": \"urn:law:fixture:delegation:parent#approve_rules\", \"args\": [{\"kind\": \"entity_ref\", \"id\": \"urn:org:fixture:ministry-health\"}]}, \"effect\": {\"kind\": \"create\", \"after\": {\"kind\": \"literal\", \"polarity\": \"positive\", \"predicate\": \"urn:law:fixture:delegation:parent#rules_in_force\", \"args\": []}}, \"subject\": [\"urn:law:fixture:delegation:parent#ProcurementProcedure\"]}}]}"}, "expect": null}
```

## Engine message

The chain checker reports this in its own wording:

```text
LDC-E5303: act urn:law:fixture:delegation:sub#ORDER: issuance basis is not declared — for a subordinate act a reference to the power norm of the authorizing law is required (§30/§127)
```

## Related

- [LDC-E5304](/diagnostics/LDC-E5304/) — the neighbouring delegation refusal.