The Administration shall send a notice of the proposed revocation to the owner of disabled registration plates or parking placard, and that notice shall be: In writing; and Sent by U. S. mail to the individual at the address on record with the Administration. The notice shall advise the individual of the following: The date the disabled registration plates or parking placard will be revoked; The reason for the revocation of the disabled registration plates or parking placard; That an administrative hearing may be requested by sending a written request to the Administration within 15 days of the notice of revocation to appeal the decision to revoke the disabled registration plates or parking placard; That the effective date of the revocation will be stayed until a requested administrative hearing is conducted; and That the individual may be represented by an attorney at the administrative hearing. Failure to appear for the scheduled administrative hearing shall result in the immediate revocation of the disabled registration plates or parking placard.