(a)
(1) may be made—
(A) before any person in the United States authorized by law to administer oaths; or
(B) when made in a foreign country, before any diplomatic or consular officer of the United States authorized to administer oaths, or before any official authorized to administer oaths in the foreign country concerned, whose authority shall be proved by a certificate of a diplomatic or consular officer of the United States; and
(2) shall be valid if they comply with the laws of the State or country where made.
(b)
(2) Whenever a written declaration under paragraph (1) is used, the document containing the declaration shall state that willful false statements are punishable by fine or imprisonment, or both, pursuant to section 1001 of title 18, and may jeopardize the validity of the application or document or a registration resulting therefrom.