---
title: "GET /radioactive-substance/registration"
method: GET
path: "/radioactive-substance/registration"
tags: ["Radioactive Substance Permits"]
---

# GET /radioactive-substance/registration

`GET /radioactive-substance/registration`

Search the register of Environmental Permitting Regulations – Radioactive Substance Permits

## Query parameters

- `number-search` string
- `name-search` string
- `name-number-search` string
- `address-search` string
- `easting` integer
- `northing` integer
- `dist` integer
- `local-authority` string
- `_limit` integer
- `_offset` integer
- `name` string
- `registrationNumber` string

## Response `200`

A list of registrations matching search criteria

- object
  - `meta` Metadata
    - `publisher` string, required — The publisher of this dataset; usually Environment Agency
    - `licence` string, uri, required — Link to the data usage licence for this dataset
    - `documentation` string, uri, required — Link to API documentation
    - `version` string — API version
    - `comment` string
    - `hasFormat` string[], required — If the resource is also available in other formats, this will list URLs for those alternative formats, with the media type implied by the suffix.
    - `limit` integer — The limit applied to search results. When no `_limit` parameter is given for a search endpoint, a default is applied.
    - `offset` integer — The offset from the start of the search results list at which the response begins. This is the same as the request `_offset` parameter, where given
  - `items` object[]
    - `@id` string, uri, required — Unique URI identifier for a resource
    - `register` object, required — The register to which a registration belongs
      - `@id` 'http://environment.data.gov.uk/public-register/waste-operations/register' | 'http://environment.data.gov.uk/public-register/end-of-life-vehicles/register' | 'http://environment.data.gov.uk/public-register/industrial-installations/register' | 'http://environment.data.gov.uk/public-register/water-discharges/register' | 'http://environment.data.gov.uk/public-register/radioactive-substance/register' | 'http://environment.data.gov.uk/public-register/waste-carriers-brokers/register' | 'http://environment.data.gov.uk/public-register/waste-exemptions/register' | 'http://environment.data.gov.uk/public-register/water-discharge-exemptions/register' | 'http://environment.data.gov.uk/public-register/scrap-metal-dealers/register' | 'http://environment.data.gov.uk/public-register/enforcement-action/register' | 'http://environment.data.gov.uk/public-register/flood-risk-exemptions/register', uri, required — The register to which the registration or permit belongs.
      - `label` string, required
      - `type` object — Register type
        - `@id` string, uri — Unique URI identifier for a resource
    - `registrationNumber` union, required — The permission, permit or registration number
      - string
      - number
    - `type` RDFtype[]
    - `holder` union
      - HolderSummary — The agent (person or organization) which holds the registration or permit.
        - `@id` string, uri, required — Unique URI identifier for a resource
        - `name` string, required — The full name of the person or organization
        - `tradingName` string — Trading name of the licence holder
        - `type` union
          - string, uri — The class(es) or type(s) of this holder. Value can be either a single item or an array where multiple types are present. All are `foaf:Agent` or a subclass thereof.
          - HolderType[]
      - HolderSummary[]
        - `@id` string, uri, required — Unique URI identifier for a resource
        - `name` string, required — The full name of the person or organization
        - `tradingName` string — Trading name of the licence holder
        - `type` union
          - string, uri — The class(es) or type(s) of this holder. Value can be either a single item or an array where multiple types are present. All are `foaf:Agent` or a subclass thereof.
          - HolderType[]
    - `registrationType` RegistrationType, required — The type of registration within a single register. Note that this is only included for registers that include multiple registration types. The `notation` and `label` properties mean the same thing, and one will be included for all registration types
      - `@id` string, uri, required — Unique URI identifier for a resource
      - `notation` string
      - `label` string
      - `prefLabel` string
      - `seeAlso` union — Link to descriptive webpage
        - string, uri
        - object
          - `@id` string, uri
    - `localAuthority` LocalAuthority
      - `@id` string, uri, required — Unique URI identifier for a resource
      - `label` string, required
    - `effectiveDate` string, date, required — The date from which the permit is in effect
    - `site` Site, required — The site associated with the registration
      - `@id` string, uri, required — Unique URI identifier for a resource
      - `siteAddress` AddressSummary
        - `address` string, required — The full address text including postcode
        - `postcode` union — Full postcode portion of the address. In the UK, this will be a string but foreign addresses may be integers
          - integer
          - string
        - `organization_name` string — The organization name to use in the address
        - `street_address` string — The number (optional) and street name part of the address
        - `locality` string — The region and/or county portion of the address
        - `postcodeURI` string, uri — The URI for the postcode area, uses OS open data URIs
    - `distance` number — Only present when searching by location and indicates the distance from that location in km

## Other responses

- `400` — ## Bad request Please check the request parameters to ensure that: * If any of the following parameters are given, they must all be given: * `dist` * `easting` * `northing` * The parameters given are applicable to the selected register * If `name-number-search` is included, no other search parameters are.
- `422` — Unprocessable request: the request was correctly formed, but could not be handled by the server because too much data was requested. Please check that the `_limit` parameter does not exceed the maximum value of 10,000 (or fewer for some registers). To get more records, please use the download endpoint.

---

[API](https://skmtc.net/environment-agency/apis/public-registers-online-api.md) · [All operations](https://skmtc.net/environment-agency/apis/public-registers-online-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/environment-agency/public-registers-online-api/revisions/a5ff4428e777/schema)