Full text
Where by any Act of Parliament or regulation made under an Act of Parliament provision is made for sending by mail any request for information, notice or demand by a department or other branch in the federal public administration, an affidavit of an officer of the department or other branch in the federal public administration, sworn before any commissioner or other person authorized to take affidavits, setting out that he or she has charge of the appropriate records, that he or she has a knowledge of the facts in the particular case, that the request, notice or demand was sent by registered letter on a named date to the person or firm to whom it was addressed (indicating that address) and that he or she identifies as exhibits attached to the affidavit the post office certificate of registration of the letter and a true copy of the request, notice or demand, shall, on production and proof of the post office receipt for the delivery of the registered letter to the addressee, be admitted in evidence as proof, in the absence of evidence to the contrary, of the sending and of the request, notice or demand.