---
title: "Retrieve new or updated packages for a collection within a date range"
method: GET
path: "/collections/{collection}/{lastModifiedStartDate}/{lastModifiedEndDate}"
tags: ["Collections"]
---

# Retrieve new or updated packages for a collection within a date range

`GET /collections/{collection}/{lastModifiedStartDate}/{lastModifiedEndDate}`

## Path parameters

- `collection` 'BILLS' | 'BILLSTATUS' | 'BUDGET' | 'CCAL' | 'CDIR' | 'CDOC' | 'CFR' | 'CHRG' | 'CMR' | 'COMPS' | 'CPD' | 'CPRT' | 'CREC' | 'CRECB' | 'CRI' | 'CRPT' | 'CZIC' | 'ECFR' | 'ECONI' | 'ERIC' | 'ERP' | 'FR' | 'GAOREPORTS' | 'GOVMAN' | 'GOVPUB' | 'GPO' | 'HJOURNAL' | 'HMAN' | 'HOB' | 'LSA' | 'PAI' | 'PLAW' | 'PPP' | 'SERIALSET' | 'SJOURNAL' | 'SMAN' | 'STATUTE' | 'USCODE' | 'USCOURTS' | 'USREPORTS', required
- `lastModifiedStartDate` string, required
- `lastModifiedEndDate` string, required

## Query parameters

- `offsetMark` string
- `offset` integer
- `pageSize` integer, required
- `docClass` string
- `congress` integer
- `billVersion` 'as' | 'ash' | 'ath' | 'ats' | 'cdh' | 'cds' | 'cph' | 'cps' | 'eah' | 'eas' | 'eh' | 'enr' | 'eph' | 'es' | 'fah' | 'fph' | 'fps' | 'hdh' | 'hds' | 'ih' | 'iph' | 'ips' | 'is' | 'lth' | 'lts' | 'nat' | 'oph' | 'ops' | 'pap' | 'pav' | 'pch' | 'pcs' | 'pp' | 'pwah' | 'rah' | 'ras' | 'rch' | 'rcs' | 'rdh' | 'rds' | 're' | 'reah' | 'renr' | 'res' | 'rfh' | 'rfs' | 'rft' | 'rh' | 'rhuc' | 'rih' | 'ris' | 'rs' | 'rth' | 'rts' | 's_p' | 'sas' | 'sc' | 'mostrecent'
- `courtCode` string
- `courtType` string
- `state` string
- `topic` string
- `isGLP` boolean
- `natureSuitCode` string
- `natureSuit` string

## Response `200`

OK

- CollectionContainer
  - `count` integer
  - `message` string
  - `nextPage` string
  - `previousPage` string
  - `packages` PackageInfo[]
    - `packageId` string
    - `lastModified` string
    - `packageLink` string
    - `docClass` string
    - `title` string
    - `congress` string
    - `dateIssued` string

---

[API](https://skmtc.net/govinfo/apis/govinfo-api.md) · [All operations](https://skmtc.net/govinfo/apis/govinfo-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/govinfo/govinfo-api/revisions/eb9f8f5a0819/schema)