No exemption allowed pursuant to this article shall be valid unless the person claiming such exemption submits to the Town Assessor, and the Assessor approves, a written application for such exemption, together with such reasonable proof of entitlement to such exemption as the Assessor may require. Such proof may include, but is not limited to, current motor vehicle registration, photographs, and invoices for equipment and installation. A separate application must be filed with the Assessor for each tax year (July 1 to June 30) for which an exemption is claimed. The Assessor shall not approve any application for such exemption unless the application is filed with the Assessor on or before November 1 of the calendar year in which the relevant October 1 assessment date occurs; except, however, that an application for an exemption may also be filed within 30 days after the date of mailing of the first tax bill to be issued by the Town after an eligible motor vehicle is added to the Town's assessment list for the first time. The failure of an applicant to submit such a request prior to the applicable deadline shall be deemed to be a waiver of the exemption for all tax bills relating to the relevant assessment dates.