17 CFR 230.160: Registered investment company exemption from Section 101(c)(1) of the Electronic Signatures in Global and National Commerce Act.

A prospectus for an investment company registered under the Investment Company Act of 1940 (15 U.S.C. 80a-1 et seq.) that is sent or given for the sole purpose of permitting a communication not to be deemed a prospectus under section 2(a)(10)(a) of the Act (15 U.S.C. 77b(a)(10)(a)) shall be exempt from the requirements of section 101(c)(1) of the Electronic Signatures in Global and National Commerce Act.