The components of a letter of attestation include a title, date, the name of the recipients, body, salutation and signature of the sender. In most cases, the sender’s address is not necessary unless advised otherwise.
The purpose of a letter of attestation is to confirm or acknowledge an action, statement or behavior. As such, it takes the format and layout of an official letter, but with a few modifications. Basically, the sender is attesting to the knowledge and awareness of a particular situation. One such situation is when new employees confirm various terms and requirements of their jobs: for instance, confirming they have no criminal record, and that they are of a sane state of mind.
In some cases, the employer may write the letter on behalf of the employees so that the employees just sign it. On the other hand, some companies may require the employees to write the letter themselves and format it as required. Either way, all the ingredients above must be included in the letter. Of note, however, is the fact that these letters may seem quite simple, but they are very crucial during a confirmation of particular details.
In very rare cases, the letter may be written by the employer and will only capture those items the employer is interested in. This is acceptable, but due to the probable legal issues, it is critical that employees confirm that such omissions will not affect then.