U.S. Citizenship and Immigration Services (USCIS) has published a revised version of Form G-28, Notice of Entry of Appearance as Attorney or Accredited Representative, with an edition date of 09/17/18. This revised version removes the geographic requirement for sending an original notice to a U.S. address for attorneys and representatives that had been added to the 05/05/16 and 05/23/18 versions of the form.
USCIS is also extending the grace period for prior versions of Form G-28. The 05/05/16 and 03/04/15 versions of the form are valid until November 19, 2018. Starting on that date, USCIS will only accept Forms G-28 with the edition dates of 09/17/18 or 05/23/18. The edition date appears at the bottom of the page on the form and instructions.