Verify Carrier

curl --request POST \
  --url https://api.example.com/v1/verify-carrier \
  --header 'Authorization: <authorization>' \
  --header 'Content-Type: <content-type>' \
  --data '
{
  "registration_number": "<string>",
  "business_name": "<string>",
  "postcode": "<string>"
}
'

import requests

url = "https://api.example.com/v1/verify-carrier"

payload = {
    "registration_number": "<string>",
    "business_name": "<string>",
    "postcode": "<string>"
}
headers = {
    "Authorization": "<authorization>",
    "Content-Type": "<content-type>"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'POST',
  headers: {Authorization: '<authorization>', 'Content-Type': '<content-type>'},
  body: JSON.stringify({
    registration_number: '<string>',
    business_name: '<string>',
    postcode: '<string>'
  })
};

fetch('https://api.example.com/v1/verify-carrier', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.example.com/v1/verify-carrier",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'registration_number' => '<string>',
    'business_name' => '<string>',
    'postcode' => '<string>'
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: <authorization>",
    "Content-Type: <content-type>"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://api.example.com/v1/verify-carrier"

	payload := strings.NewReader("{\n  \"registration_number\": \"<string>\",\n  \"business_name\": \"<string>\",\n  \"postcode\": \"<string>\"\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("Authorization", "<authorization>")
	req.Header.Add("Content-Type", "<content-type>")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("https://api.example.com/v1/verify-carrier")
  .header("Authorization", "<authorization>")
  .header("Content-Type", "<content-type>")
  .body("{\n  \"registration_number\": \"<string>\",\n  \"business_name\": \"<string>\",\n  \"postcode\": \"<string>\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.example.com/v1/verify-carrier")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["Authorization"] = '<authorization>'
request["Content-Type"] = '<content-type>'
request.body = "{\n  \"registration_number\": \"<string>\",\n  \"business_name\": \"<string>\",\n  \"postcode\": \"<string>\"\n}"

response = http.request(request)
puts response.read_body

{
  "status": "<string>",
  "verification": {},
  "registrations": [
    {}
  ],
  "compliance": {}
}

POST

verify-carrier

Verify Carrier

curl --request POST \
  --url https://api.example.com/v1/verify-carrier \
  --header 'Authorization: <authorization>' \
  --header 'Content-Type: <content-type>' \
  --data '
{
  "registration_number": "<string>",
  "business_name": "<string>",
  "postcode": "<string>"
}
'

import requests

url = "https://api.example.com/v1/verify-carrier"

payload = {
    "registration_number": "<string>",
    "business_name": "<string>",
    "postcode": "<string>"
}
headers = {
    "Authorization": "<authorization>",
    "Content-Type": "<content-type>"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'POST',
  headers: {Authorization: '<authorization>', 'Content-Type': '<content-type>'},
  body: JSON.stringify({
    registration_number: '<string>',
    business_name: '<string>',
    postcode: '<string>'
  })
};

fetch('https://api.example.com/v1/verify-carrier', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.example.com/v1/verify-carrier",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'registration_number' => '<string>',
    'business_name' => '<string>',
    'postcode' => '<string>'
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: <authorization>",
    "Content-Type: <content-type>"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://api.example.com/v1/verify-carrier"

	payload := strings.NewReader("{\n  \"registration_number\": \"<string>\",\n  \"business_name\": \"<string>\",\n  \"postcode\": \"<string>\"\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("Authorization", "<authorization>")
	req.Header.Add("Content-Type", "<content-type>")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("https://api.example.com/v1/verify-carrier")
  .header("Authorization", "<authorization>")
  .header("Content-Type", "<content-type>")
  .body("{\n  \"registration_number\": \"<string>\",\n  \"business_name\": \"<string>\",\n  \"postcode\": \"<string>\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.example.com/v1/verify-carrier")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["Authorization"] = '<authorization>'
request["Content-Type"] = '<content-type>'
request.body = "{\n  \"registration_number\": \"<string>\",\n  \"business_name\": \"<string>\",\n  \"postcode\": \"<string>\"\n}"

response = http.request(request)
puts response.read_body

{
  "status": "<string>",
  "verification": {},
  "registrations": [
    {}
  ],
  "compliance": {}
}

Verify Carrier

Verifies a waste carrier’s registration against the Environment Agency public register. Also available as a GET request with query parameters. Supports three search modes: direct lookup by registration number (fastest), search by business name, or search by postcode. If multiple fields are provided, registration_number takes priority.

Requires authentication via Authorization header. See Authentication.

Request

Method: POST (or GET with query parameters) Path: /v1/verify-carrier

Headers

string

required

Bearer token with your API key, e.g. Bearer wc_live_your_key

string

required

Must be application/json (POST only)

Body Parameters

At least one field is required.

string

CBDU or CBDL registration number (e.g. CBDU217016). Direct lookup — fastest.

string

Business name to search for

string

Postcode to search for registered carriers

Response

Success Response (200)

{
  "status": "valid",
  "verification": {
    "checked_at": "2026-03-25T14:30:00Z",
    "source": "environment_agency",
    "cached": false
  },
  "registrations": [
    {
      "registration_number": "CBDU217016",
      "business_name": "ACME WASTE SERVICES LTD",
      "company_number": "12345678",
      "tier": "upper",
      "status": "valid",
      "expiry_date": "2027-01-15",
      "days_until_expiry": 298,
      "expiry_warning": false
    }
  ],
  "compliance": {
    "is_compliant": true,
    "flags": [],
    "recommendation": "Registration is valid and current."
  }
}

string

Overall status: valid, expiring_soon, expired, not_found, or lower_tier

object

Metadata about the check including timestamp, source, and cache status

array

Array of matching carrier registrations

object

Compliance assessment with flags and recommendation text

Status Values

Status	Meaning
`valid`	Active registration, not expired
`expiring_soon`	Valid but within 90 days of expiry (upper tier only)
`expired`	Past expiry date
`not_found`	No matching registration
`lower_tier`	Valid but lower tier registration only

Compliance Flags

Flag	Meaning
`EXPIRING_WITHIN_90_DAYS`	Upper tier registration nearing expiry
`LOWER_TIER_ONLY`	May not meet requirements for commercial waste
`MULTIPLE_REGISTRATIONS_FOUND`	Name or postcode search returned multiple matches

Caching

Direct lookups by registration number are cached for 24 hours. Name and postcode searches are cached for 1 hour. The verification.cached field indicates whether the result was served from cache.

Error Responses

Code	HTTP	When
`CARRIER_NOT_FOUND`	404	No registration matches the input
`INVALID_REGISTRATION_NUMBER`	400	Registration number doesn’t match CBDU/CBDL format
`EA_REGISTER_UNAVAILABLE`	503	Environment Agency register is down or unreachable

Example

curl -X POST https://api.wastecheck.co.uk/v1/verify-carrier \
  -H "Authorization: Bearer wc_live_your_api_key_here" \
  -H "Content-Type: application/json" \
  -d '{"registration_number": "CBDU217016"}'

const response = await fetch(
  "https://api.wastecheck.co.uk/v1/verify-carrier",
  {
    method: "POST",
    headers: {
      "Authorization": "Bearer wc_live_your_api_key_here",
      "Content-Type": "application/json",
    },
    body: JSON.stringify({
      registration_number: "CBDU217016",
    }),
  }
);
const data = await response.json();
console.log(data.status); // "valid"

import requests

response = requests.post(
    "https://api.wastecheck.co.uk/v1/verify-carrier",
    headers={
        "Authorization": "Bearer wc_live_your_api_key_here",
    },
    json={
        "registration_number": "CBDU217016",
    },
)
data = response.json()
print(data["status"])  # "valid"

$ch = curl_init("https://api.wastecheck.co.uk/v1/verify-carrier");
curl_setopt_array($ch, [
    CURLOPT_POST => true,
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_HTTPHEADER => [
        "Authorization: Bearer wc_live_your_api_key_here",
        "Content-Type: application/json",
    ],
    CURLOPT_POSTFIELDS => json_encode([
        "registration_number" => "CBDU217016",
    ]),
]);
$response = json_decode(curl_exec($ch), true);
echo $response["status"]; // "valid"

Getting Started

API Reference

Verify Carrier

Verify Carrier

Request

Headers

Body Parameters

Response

Success Response (200)

Status Values

Compliance Flags

Caching

Error Responses

Example

​Verify Carrier

​Request

​Headers

​Body Parameters

​Response

​Success Response (200)

​Status Values

​Compliance Flags

​Caching

​Error Responses

​Example

Verify Carrier

Request

Headers

Body Parameters

Response

Success Response (200)

Status Values

Compliance Flags

Caching

Error Responses

Example