(2) Notice of Appeal; How Filed. The notice of appeal may be filed either at the Tax Court clerk’s office in the District of Columbia or by sending it to the clerk. If sent by mail the notice is considered filed on the postmark date, subject to § 7502 of the Internal Revenue Code, as amended, and the applicable regulations.
(3) Contents of the Notice of Appeal; Service; Effect of Filing and Service. Rule 3 prescribes the contents of a notice of appeal, the manner of service, and the effect of its filing and service. Form 2 in the Appendix of Forms is a suggested form of a notice of appeal.