congressgov-mcp-server

Congress.gov Bill Lookup

congressgov_bill_lookup

Read-onlyIdempotent

Browse and retrieve U.S. legislative bill data from Congress.gov. Discover bills by filtering on congress, bill type, and date range — there is no keyword search. Use 'list' to browse (requires congress, defaults to most-recently-updated first), 'get' for full bill detail (sponsor, policy area, CBO estimates, law info), or drill into a specific bill with 'actions', 'amendments', 'cosponsors', 'committees', 'subjects', 'summaries', 'text', 'titles', or 'related' (each requires congress + billType + billNumber). 'text' lists the published versions and their format URLs; 'content' then reads one version's actual text, a bounded character window at a time. 'summaries' takes an optional versionCode selector and returns each row's text a bounded character window at a time — a row past the window carries textTotalCharacters/textTruncated/textNextOffset, and characterOffset reads on from there.

Input Schema

TableJSON Schema

Name	Required	Description	Default
`limit`	No	Results per page (1-250).
`order`	No	Sort order for 'list' (sorts by update date). 'recent' (default) is newest first; 'oldest' is ascending. Ignored by other operations.	recent
`format`	No	Document format for 'content'. 'text' is GPO's Formatted Text — plain, pre-formatted print output, published for every document checked. 'xml' prefers United States Legislative Markup and falls back to Formatted XML; it exists on some bill text versions and on no committee report or Congressional Record article. PDF is not retrieved — read one at the format URLs 'text'/'articles' return.	text
`offset`	No	Pagination offset.
`billType`	No	Bill type code. Required for get and sub-resource operations.
`congress`	Yes	Congress number (e.g., 118, 119).
`operation`	Yes	Which data to retrieve.
`billNumber`	No	Bill number. Required for get and sub-resource operations. Accepts the digit-string form list rows carry (e.g. "9479") as well as a number.
`toDateTime`	No	End of date range filter (ISO 8601). Same field semantics as fromDateTime.
`versionCode`	No	Which summary version 'summaries' returns — the versionCode a summary row carries ('00' introduced, '49' public law). Selection runs over the bill's whole summary list, which Congress.gov publishes no filter for, and limit/offset then page the matching rows. Omit to return every version. Ignored by other operations.
`fromDateTime`	No	Start of date range filter (ISO 8601). Filters by the bill's update date — when Congress.gov last touched the record — not by the bill's latest legislative action.
`characterLimit`	No	Maximum characters to return (1-100000) — for the document window on 'content', and for each row's summary text on 'summaries'. Legislative documents run past a million characters and an enacted bill's summary past two hundred thousand, so either takes several windows.
`characterOffset`	No	First character to return, 0-based — of the document on 'content', and of every returned row's summary text on 'summaries'. Offsets are exact and are never snapped to a section or paragraph break, so feeding back the response's nextOffset (or a summary row's textNextOffset) walks the whole text with every character returned exactly once.
`textVersionIndex`	No	Which text version 'content' reads, 0-based against the same order 'text' returns — 0 is the most recent version. Ignored by other operations.

Output Schema

TableJSON Schema

Name	Required	Description
`bill`	No	Dynamic upstream JSON record.
`data`	No	Result rows. Per-tool item shape is rendered in the markdown body.
`error`	No	Present when the call failed. Absent on success.
`notice`	No	Guidance when results are empty, a page is past the end, or a caveat applies.
`content`	No	Dynamic upstream JSON record.
`pagination`	No	Pagination metadata: total count and next offset.
`totalCount`	No	Total results across all pages.
`effectiveQuery`	No	The browse scope and applied filters.

Schema Changelog

Changes observed during successful MCP inspections.

Changed2 schema fields changedOct 13, 2026

changedOutput schema / properties / error / properties / data / properties / reason / description

Previous value: -"Machine-readable failure mode. Declared by this tool: `not_found`: A requested bill, member, committee, report, vote, or nomination does not exist in Congress.gov. `rate_limited`: The Congress.gov API rate limit (5,000 requests/hour per key) was exceeded. `invalid_request`: Congress.gov rejected the request as malformed — a bad date range or an identifier with an unexpected shape. `upstream_error`: Congress.gov returned an unexpected error (5xx or another non-2xx status). `document_unavailable`: The 'content' selection resolves to no retrievable document — the text version or article index is past the end of the list, the record publishes no formats at all, or Congress.gov does not hold the file its own metadata names. `format_unavailable`: The document exists but publishes nothing in the requested 'format' — some text versions and committee reports ship PDF only, and no Congressional Record article publishes XML. `document_fetch_failed`: www.congress.gov did not return a readable document — a non-2xx status, a network failure, an empty body, or a content type that is not text or XML. `document_too_large`: The document is larger than the byte ceiling this server retrieves, so no character window can be served from it. `offset_past_end`: characterOffset is at or beyond the last character of every text the call would window — the document on 'content', or every returned row's summary text on 'summaries' — so the window would be empty. Other values are possible when a failure originates below the handler."New value: +"Machine-readable failure mode. Declared by this tool: `not_found`: A requested bill, member, committee, report, vote, or nomination does not exist in Congress.gov. `rate_limited`: A process-local attempt budget or the shared upstream credential/IP quota was reached; upstream hourly limits vary and DEMO_KEY also has a daily quota. `invalid_request`: Congress.gov rejected the request as malformed — a bad date range or an identifier with an unexpected shape. `upstream_error`: Congress.gov returned an unexpected error (5xx or another non-2xx status). `upstream_timeout`: The Congress.gov request deadline expired or the upstream returned an HTTP timeout response. `document_unavailable`: The 'content' selection resolves to no retrievable document — the text version or article index is past the end of the list, the record publishes no formats at all, or Congress.gov does not hold the file its own metadata names. `format_unavailable`: The document exists but publishes nothing in the requested 'format' — some text versions and committee reports ship PDF only, and no Congressional Record article publishes XML. `document_fetch_failed`: www.congress.gov did not return a readable document — a non-2xx status, a network failure, an empty body, or a content type that is not text or XML. `document_too_large`: The document is larger than the byte ceiling this server retrieves, so no character window can be served from it. `offset_past_end`: characterOffset is at or beyond the last character of every text the call would window — the document on 'content', or every returned row's summary text on 'summaries' — so the window would be empty. `incompatible_identity`: A list operation carries an entity identifier that only a detail operation uses. Other values are possible when a failure originates below the handler."

changedOutput schema / properties / error / properties / data / properties / reason / examples

Previous value: -[
-  "not_found",
-  "rate_limited",
-  "invalid_request",
-  "upstream_error",
-  "document_unavailable",
-  "format_unavailable",
-  "document_fetch_failed",
-  "document_too_large",
-  "offset_past_end"
-]New value: +[
+  "not_found",
+  "rate_limited",
+  "invalid_request",
+  "upstream_error",
+  "upstream_timeout",
+  "document_unavailable",
+  "format_unavailable",
+  "document_fetch_failed",
+  "document_too_large",
+  "offset_past_end",
+  "incompatible_identity"
+]

Changed4 schema fields changedSep 22, 2026

changedInput schema / properties / characterLimit / description

Previous value: -"Maximum characters to return for 'content' (1-100000). Legislative documents run past a million characters, so a full bill takes several windows."New value: +"Maximum characters to return (1-100000) — for the document window on 'content', and for each row's summary text on 'summaries'. Legislative documents run past a million characters and an enacted bill's summary past two hundred thousand, so either takes several windows."

changedInput schema / properties / characterOffset / description

Previous value: -"First character to return for 'content', 0-based. Offsets are exact and are never snapped to a section or paragraph break, so feeding the response's nextOffset back walks the whole document with every character returned exactly once."New value: +"First character to return, 0-based — of the document on 'content', and of every returned row's summary text on 'summaries'. Offsets are exact and are never snapped to a section or paragraph break, so feeding back the response's nextOffset (or a summary row's textNextOffset) walks the whole text with every character returned exactly once."

addedInput schema / properties / versionCode

Added value: +{
+  "description": "Which summary version 'summaries' returns — the versionCode a summary row carries ('00' introduced, '49' public law). Selection runs over the bill's whole summary list, which Congress.gov publishes no filter for, and limit/offset then page the matching rows. Omit to return every version. Ignored by other operations.",
+  "type": "string"
+}

changedOutput schema / properties / error / properties / data / properties / reason / description

Previous value: -"Machine-readable failure mode. Declared by this tool: `not_found`: A requested bill, member, committee, report, vote, or nomination does not exist in Congress.gov. `rate_limited`: The Congress.gov API rate limit (5,000 requests/hour per key) was exceeded. `invalid_request`: Congress.gov rejected the request as malformed — a bad date range or an identifier with an unexpected shape. `upstream_error`: Congress.gov returned an unexpected error (5xx or another non-2xx status). `document_unavailable`: The 'content' selection resolves to no retrievable document — the text version or article index is past the end of the list, the record publishes no formats at all, or Congress.gov does not hold the file its own metadata names. `format_unavailable`: The document exists but publishes nothing in the requested 'format' — some text versions and committee reports ship PDF only, and no Congressional Record article publishes XML. `document_fetch_failed`: www.congress.gov did not return a readable document — a non-2xx status, a network failure, an empty body, or a content type that is not text or XML. `document_too_large`: The document is larger than the byte ceiling this server retrieves, so no character window can be served from it. `offset_past_end`: characterOffset is at or beyond the last character of the document, so the window would be empty. Other values are possible when a failure originates below the handler."New value: +"Machine-readable failure mode. Declared by this tool: `not_found`: A requested bill, member, committee, report, vote, or nomination does not exist in Congress.gov. `rate_limited`: The Congress.gov API rate limit (5,000 requests/hour per key) was exceeded. `invalid_request`: Congress.gov rejected the request as malformed — a bad date range or an identifier with an unexpected shape. `upstream_error`: Congress.gov returned an unexpected error (5xx or another non-2xx status). `document_unavailable`: The 'content' selection resolves to no retrievable document — the text version or article index is past the end of the list, the record publishes no formats at all, or Congress.gov does not hold the file its own metadata names. `format_unavailable`: The document exists but publishes nothing in the requested 'format' — some text versions and committee reports ship PDF only, and no Congressional Record article publishes XML. `document_fetch_failed`: www.congress.gov did not return a readable document — a non-2xx status, a network failure, an empty body, or a content type that is not text or XML. `document_too_large`: The document is larger than the byte ceiling this server retrieves, so no character window can be served from it. `offset_past_end`: characterOffset is at or beyond the last character of every text the call would window — the document on 'content', or every returned row's summary text on 'summaries' — so the window would be empty. Other values are possible when a failure originates below the handler."

Changed2 schema fields changedAug 30, 2026

addedOutput schema / properties / bill

Added value: +{
+  "additionalProperties": {},
+  "description": "Dynamic upstream JSON record.",
+  "properties": {},
+  "type": "object"
+}

addedOutput schema / properties / content

Added value: +{
+  "additionalProperties": {},
+  "description": "Dynamic upstream JSON record.",
+  "properties": {},
+  "type": "object"
+}

Changed6 schema fields changedAug 25, 2026

changedInput schema / $schema

Previous value: -"http://json-schema.org/draft-07/schema#"New value: +"https://json-schema.org/draft/2020-12/schema"

addedInput schema / additionalProperties
```
Added value: +false
```

changedOutput schema / $schema

Previous value: -"http://json-schema.org/draft-07/schema#"New value: +"https://json-schema.org/draft/2020-12/schema"

addedOutput schema / anyOf

Added value: +[
+  {
+    "not": {
+      "required": [
+        "error"
+      ]
+    },
+    "required": [
+      "effectiveQuery",
+      "totalCount"
+    ]
+  },
+  {
+    "required": [
+      "error"
+    ]
+  }
+]

addedOutput schema / properties / error

Added value: +{
+  "additionalProperties": {},
+  "description": "Present when the call failed. Absent on success.",
+  "properties": {
+    "code": {
+      "description": "JSON-RPC error code for this failure.",
+      "maximum": 9007199254740991,
+      "minimum": -9007199254740991,
+      "type": "integer"
+    },
+    "data": {
+      "additionalProperties": {},
+      "properties": {
+        "reason": {
+          "description": "Machine-readable failure mode. Declared by this tool: `not_found`: A requested bill, member, committee, report, vote, or nomination does not exist in Congress.gov. `rate_limited`: The Congress.gov API rate limit (5,000 requests/hour per key) was exceeded. `invalid_request`: Congress.gov rejected the request as malformed — a bad date range or an identifier with an unexpected shape. `upstream_error`: Congress.gov returned an unexpected error (5xx or another non-2xx status). `document_unavailable`: The 'content' selection resolves to no retrievable document — the text version or article index is past the end of the list, the record publishes no formats at all, or Congress.gov does not hold the file its own metadata names. `format_unavailable`: The document exists but publishes nothing in the requested 'format' — some text versions and committee reports ship PDF only, and no Congressional Record article publishes XML. `document_fetch_failed`: www.congress.gov did not return a readable document — a non-2xx status, a network failure, an empty body, or a content type that is not text or XML. `document_too_large`: The document is larger than the byte ceiling this server retrieves, so no character window can be served from it. `offset_past_end`: characterOffset is at or beyond the last character of the document, so the window would be empty. Other values are possible when a failure originates below the handler.",
+          "examples": [
+            "not_found",
+            "rate_limited",
+            "invalid_request",
+            "upstream_error",
+            "document_unavailable",
+            "format_unavailable",
+            "document_fetch_failed",
+            "document_too_large",
+            "offset_past_end"
+          ],
+          "type": "string"
+        },
+        "recovery": {
+          "additionalProperties": {},
+          "description": "Actionable next step for the caller.",
+          "properties": {
+            "hint": {
+              "type": "string"
+            }
+          },
+          "required": [
+            "hint"
+          ],
+          "type": "object"
+        },
+        "retryable": {
+          "description": "Whether retrying may succeed.",
+          "type": "boolean"
+        }
+      },
+      "type": "object"
+    },
+    "message": {
+      "description": "Human-readable description of what went wrong.",
+      "type": "string"
+    }
+  },
+  "required": [
+    "code",
+    "message"
+  ],
+  "type": "object"
+}

removedOutput schema / required

Removed value: -[
-  "effectiveQuery",
-  "totalCount"
-]

Changed10 schema fields changedAug 17, 2026

addedInput schema / properties / billNumber / anyOf

Added value: +[
+  {
+    "description": "Positive integer form.",
+    "exclusiveMinimum": 0,
+    "maximum": 9007199254740991,
+    "type": "integer"
+  },
+  {
+    "description": "Digit-string form, as list rows carry it.",
+    "pattern": "^0*[1-9]\\d*$",
+    "type": "string"
+  }
+]

changedInput schema / properties / billNumber / description

Previous value: -"Bill number. Required for get and sub-resource operations."New value: +"Bill number. Required for get and sub-resource operations. Accepts the digit-string form list rows carry (e.g. \"9479\") as well as a number."

removedInput schema / properties / billNumber / exclusiveMinimum
```
Removed value: -0
```
removedInput schema / properties / billNumber / maximum
```
Removed value: -9007199254740991
```
removedInput schema / properties / billNumber / type
```
Removed value: -"integer"
```

addedInput schema / properties / characterLimit

Added value: +{
+  "default": 25000,
+  "description": "Maximum characters to return for 'content' (1-100000). Legislative documents run past a million characters, so a full bill takes several windows.",
+  "maximum": 100000,
+  "minimum": 1,
+  "type": "integer"
+}

addedInput schema / properties / characterOffset

Added value: +{
+  "default": 0,
+  "description": "First character to return for 'content', 0-based. Offsets are exact and are never snapped to a section or paragraph break, so feeding the response's nextOffset back walks the whole document with every character returned exactly once.",
+  "maximum": 9007199254740991,
+  "minimum": 0,
+  "type": "integer"
+}

addedInput schema / properties / format

Added value: +{
+  "default": "text",
+  "description": "Document format for 'content'. 'text' is GPO's Formatted Text — plain, pre-formatted print output, published for every document checked. 'xml' prefers United States Legislative Markup and falls back to Formatted XML; it exists on some bill text versions and on no committee report or Congressional Record article. PDF is not retrieved — read one at the format URLs 'text'/'articles' return.",
+  "enum": [
+    "text",
+    "xml"
+  ],
+  "type": "string"
+}

changedInput schema / properties / operation / enum

Previous value: -[
-  "list",
-  "get",
-  "actions",
-  "amendments",
-  "cosponsors",
-  "committees",
-  "subjects",
-  "summaries",
-  "text",
-  "titles",
-  "related"
-]New value: +[
+  "list",
+  "get",
+  "actions",
+  "amendments",
+  "cosponsors",
+  "committees",
+  "subjects",
+  "summaries",
+  "text",
+  "titles",
+  "related",
+  "content"
+]

addedInput schema / properties / textVersionIndex

Added value: +{
+  "default": 0,
+  "description": "Which text version 'content' reads, 0-based against the same order 'text' returns — 0 is the most recent version. Ignored by other operations.",
+  "maximum": 9007199254740991,
+  "minimum": 0,
+  "type": "integer"
+}

Changed6 schema fields changedMay 30, 2026

removedOutput schema / description

Removed value: -"Detail-mode key 'bill' carries: Bill record (sponsor, policy area, latest action, CBO estimates, law citation) for `get`; absent for `list` and sub-resources."

addedOutput schema / properties / effectiveQuery

Added value: +{
+  "description": "The browse scope and applied filters.",
+  "type": "string"
+}

addedOutput schema / properties / notice

Added value: +{
+  "description": "Guidance when results are empty, a page is past the end, or a caveat applies.",
+  "type": "string"
+}

removedOutput schema / properties / query

Removed value: -{
-  "description": "Echo of the applied filters for list-mode queries. Rendered as the first line of the response.",
-  "type": "string"
-}

addedOutput schema / properties / totalCount

Added value: +{
+  "description": "Total results across all pages.",
+  "type": "number"
+}

addedOutput schema / required

Added value: +[
+  "effectiveQuery",
+  "totalCount"
+]

Changed4 schema fields changedMay 21, 2026

changedOutput schema / description

Previous value: -"Bill data from Congress.gov API."New value: +"Detail-mode key 'bill' carries: Bill record (sponsor, policy area, latest action, CBO estimates, law citation) for `get`; absent for `list` and sub-resources."

addedOutput schema / properties / data

Added value: +{
+  "description": "Result rows. Per-tool item shape is rendered in the markdown body.",
+  "items": {
+    "additionalProperties": {},
+    "description": "Upstream JSON record. Per-tool item shape is rendered in the markdown body.",
+    "properties": {},
+    "type": "object"
+  },
+  "type": "array"
+}

addedOutput schema / properties / pagination

Added value: +{
+  "additionalProperties": false,
+  "description": "Pagination metadata: total count and next offset.",
+  "properties": {
+    "count": {
+      "description": "Total result count across all pages.",
+      "maximum": 9007199254740991,
+      "minimum": 0,
+      "type": "integer"
+    },
+    "nextOffset": {
+      "anyOf": [
+        {
+          "maximum": 9007199254740991,
+          "minimum": 0,
+          "type": "integer"
+        },
+        {
+          "type": "null"
+        }
+      ],
+      "description": "Offset to pass for the next page, or null when there are no more pages."
+    }
+  },
+  "required": [
+    "count"
+  ],
+  "type": "object"
+}

addedOutput schema / properties / query

Added value: +{
+  "description": "Echo of the applied filters for list-mode queries. Rendered as the first line of the response.",
+  "type": "string"
+}

Changed3 schema fields changedMay 21, 2026

changedInput schema / properties / fromDateTime / description

Previous value: -"Start of date range filter (ISO 8601). Filters by latest action date."New value: +"Start of date range filter (ISO 8601). Filters by the bill's update date — when Congress.gov last touched the record — not by the bill's latest legislative action."

addedInput schema / properties / order

Added value: +{
+  "default": "recent",
+  "description": "Sort order for 'list' (sorts by update date). 'recent' (default) is newest first; 'oldest' is ascending. Ignored by other operations.",
+  "enum": [
+    "recent",
+    "oldest"
+  ],
+  "type": "string"
+}

changedInput schema / properties / toDateTime / description

Previous value: -"End of date range filter (ISO 8601)."New value: +"End of date range filter (ISO 8601). Same field semantics as fromDateTime."

Changed3 schema fields changedApr 21, 2026

removedOutput schema / properties / bill

Removed value: -{
-  "additionalProperties": {},
-  "description": "Bill detail for operation=\"get\".",
-  "properties": {
-    "congress": {
-      "anyOf": [
-        {
-          "type": "number"
-        },
-        {
-          "type": "string"
-        }
-      ],
-      "description": "Congress number when Congress.gov includes it."
-    },
-    "latestAction": {
-      "additionalProperties": {},
-      "description": "Latest action summary when provided by Congress.gov.",
-      "properties": {
-        "actionDate": {
-          "description": "Latest action date when provided by Congress.gov.",
-          "type": "string"
-        },
-        "text": {
-          "description": "Latest action text when provided by Congress.gov.",
-          "type": "string"
-        }
-      },
-      "type": "object"
-    },
-    "number": {
-      "anyOf": [
-        {
-          "type": "number"
-        },
-        {
-          "type": "string"
-        }
-      ],
-      "description": "Bill number when provided by Congress.gov."
-    },
-    "title": {
-      "description": "Bill title when provided by Congress.gov. Omitted when unknown.",
-      "type": "string"
-    },
-    "type": {
-      "description": "Bill type code when provided by Congress.gov.",
-      "type": "string"
-    },
-    "updateDate": {
-      "description": "Last update timestamp when provided by Congress.gov.",
-      "type": "string"
-    }
-  },
-  "type": "object"
-}

removedOutput schema / properties / data

Removed value: -{
-  "description": "List or sub-resource records for list and drill-down operations. Preserves upstream item shapes instead of narrowing them.",
-  "items": {},
-  "type": "array"
-}

removedOutput schema / properties / pagination

Removed value: -{
-  "additionalProperties": false,
-  "description": "Pagination metadata for list and sub-resource operations.",
-  "properties": {
-    "count": {
-      "description": "Total number of matching records.",
-      "maximum": 9007199254740991,
-      "minimum": 0,
-      "type": "integer"
-    },
-    "nextOffset": {
-      "anyOf": [
-        {
-          "maximum": 9007199254740991,
-          "minimum": 0,
-          "type": "integer"
-        },
-        {
-          "type": "null"
-        }
-      ],
-      "description": "Offset to request the next page, or null when there is no next page."
-    }
-  },
-  "required": [
-    "count",
-    "nextOffset"
-  ],
-  "type": "object"
-}

Changed3 schema fields changedApr 19, 2026

addedOutput schema / properties / bill

Added value: +{
+  "additionalProperties": {},
+  "description": "Bill detail for operation=\"get\".",
+  "properties": {
+    "congress": {
+      "anyOf": [
+        {
+          "type": "number"
+        },
+        {
+          "type": "string"
+        }
+      ],
+      "description": "Congress number when Congress.gov includes it."
+    },
+    "latestAction": {
+      "additionalProperties": {},
+      "description": "Latest action summary when provided by Congress.gov.",
+      "properties": {
+        "actionDate": {
+          "description": "Latest action date when provided by Congress.gov.",
+          "type": "string"
+        },
+        "text": {
+          "description": "Latest action text when provided by Congress.gov.",
+          "type": "string"
+        }
+      },
+      "type": "object"
+    },
+    "number": {
+      "anyOf": [
+        {
+          "type": "number"
+        },
+        {
+          "type": "string"
+        }
+      ],
+      "description": "Bill number when provided by Congress.gov."
+    },
+    "title": {
+      "description": "Bill title when provided by Congress.gov. Omitted when unknown.",
+      "type": "string"
+    },
+    "type": {
+      "description": "Bill type code when provided by Congress.gov.",
+      "type": "string"
+    },
+    "updateDate": {
+      "description": "Last update timestamp when provided by Congress.gov.",
+      "type": "string"
+    }
+  },
+  "type": "object"
+}

addedOutput schema / properties / data

Added value: +{
+  "description": "List or sub-resource records for list and drill-down operations. Preserves upstream item shapes instead of narrowing them.",
+  "items": {},
+  "type": "array"
+}

addedOutput schema / properties / pagination

Added value: +{
+  "additionalProperties": false,
+  "description": "Pagination metadata for list and sub-resource operations.",
+  "properties": {
+    "count": {
+      "description": "Total number of matching records.",
+      "maximum": 9007199254740991,
+      "minimum": 0,
+      "type": "integer"
+    },
+    "nextOffset": {
+      "anyOf": [
+        {
+          "maximum": 9007199254740991,
+          "minimum": 0,
+          "type": "integer"
+        },
+        {
+          "type": "null"
+        }
+      ],
+      "description": "Offset to request the next page, or null when there is no next page."
+    }
+  },
+  "required": [
+    "count",
+    "nextOffset"
+  ],
+  "type": "object"
+}

First observedMar 28, 2026

TDQS

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