An authorization letter allows another person to act on your behalf for a specific transaction. To write one:

1. Add the date at the top of the letter.
2. Address the letter to the company, office, or government agency concerned.
3. State your full name and address as the person giving authorization.
4. Name the authorized representative and provide their relevant details.
5. Clearly explain the purpose of the authorization and the specific transaction they are allowed to handle.
6. Mention any documents or items the representative is authorized to submit, receive, or collect.
7. Add the validity period, if applicable.
8. Sign the letter and include your contact details.
9. The representative should bring their valid ID, along with copies of the required IDs or supporting documents.

Keep the authorization specific rather than giving broad permission. Requirements such as notarization, valid IDs, or additional documents may vary depending on the transaction and organization.