17 CFR 240.13a-11: a-11 Current reports on Form 8-K (§ 249.308 of this chapter).

(a) Except as provided in paragraph (b) of this section, every registrant subject to § 240.13a-1 shall file a current report on Form 8-K within the period specified in that form unless substantially the same information as that required by Form 8-K has been previously reported by the registrant.

(b) This section shall not apply to foreign governments, foreign private issuers required to make reports on Form 6-K (§ 249.306 of this chapter) pursuant to § 240.13a-16, issuers of American Depositary Receipts for securities of any foreign issuer, or investment companies required to file reports pursuant to § 270.30a-1 of this chapter under the Investment Company Act of 1940, except where such an investment company is required to file notice of a blackout period pursuant to § 245.104 of this chapter.

(c) No failure to file a report on Form 8-K that is required solely pursuant to Item 1.01, 1.02, 1.05, 2.03, 2.04, 2.05, 2.06, 4.02(a), 5.02(e), or 6.03 of Form 8-K shall be deemed to be a violation of 15 U.S.C. 78j(b) and § 240.10b-5.