(a) A consular officer of a foreign government shall be considered duly accredited under section 3(a) of the Act whenever he has received formal recognition as such, whether provisionally or by exequatur, from the Secretary of State.

(b) The exemption provided by section 3(a) of the Act to a duly accredited diplomatic or consular officer is personal and does not include within its scope an office, bureau, or other entity.