a prospectus relating to a security other than a security issued by a foreign government or political subdivision thereof, shall contain the information contained in the registration statement, but it need not include the documents referred to in paragraphs (28) to (32), inclusive, of schedule A of section 77aa of this title;

a prospectus relating to a security issued by a foreign government or political subdivision thereof shall contain the information contained in the registration statement, but it need not include the documents referred to in paragraphs (13) and (14) of schedule B of section 77aa of this title;

notwithstanding the provisions of paragraphs (1) and (2) of this subsection when a prospectus is used more than nine months after the effective date of the registration statement, the information contained therein shall be as of a date not more than sixteen months prior to such use, so far as such information is known to the user of such prospectus or can be furnished by such user without unreasonable effort or expense;

there may be omitted from any prospectus any of the information required under this subsection which the Commission may by rules or regulations designate as not being necessary or appropriate in the public interest or for the protection of investors.