47 U.S. Code § 230 - Protection for private blocking and screening of offensive material
No provider or user of an interactive computer service shall be treated as the publisher or speaker of any information provided by another information content provider.
A provider of interactive computer service shall, at the time of entering an agreement with a customer for the provision of interactive computer service and in a manner deemed appropriate by the provider, notify such customer that parental control protections (such as computer hardware, software, or filtering services) are commercially available that may assist the customer in limiting access to material that is harmful to minors. Such notice shall identify, or provide the customer with access to information identifying, current providers of such protections.
Nothing in this section shall be construed to limit or expand any law pertaining to intellectual property.
Nothing in this section shall be construed to prevent any State from enforcing any State law that is consistent with this section. No cause of action may be brought and no liability may be imposed under any State or local law that is inconsistent with this section.
The term “Internet” means the international computer network of both Federal and non-Federal interoperable packet switched data networks.
The term “interactive computer service” means any information service, system, or access software provider that provides or enables computer access by multiple users to a computer server, including specifically a service or system that provides access to the Internet and such systems operated or services offered by libraries or educational institutions.
The term “information content provider” means any person or entity that is responsible, in whole or in part, for the creation or development of information provided through the Internet or any other interactive computer service.
 So in original. Probably should be “subparagraph (A).”
The Electronic Communications Privacy Act of 1986, referred to in subsec. (e)(4), is Pub. L. 99–508, Oct. 21, 1986, 100 Stat. 1848, as amended. For complete classification of this Act to the Code, see Short Title of 1986 Amendment note set out under section 2510 of Title 18, Crimes and Criminal Procedure, and Tables.
Section 509 of Pub. L. 104–104, which directed amendment of title II of the Communications Act of 1934 (47 U.S.C. 201 et seq.) by adding section 230 at end, was executed by adding the section at end of part I of title II of the Act to reflect the probable intent of Congress and amendments by sections 101(a), (b), and 151(a) of Pub. L. 104–104 designating §§ 201 to 229 as part I and adding parts II (§ 251 et seq.) and III (§ 271 et seq.) to title II of the Act.
1998—Subsec. (d). Pub. L. 105–277, § 1404(a)(3), added subsec. (d). Former subsec. (d) redesignated (e).
Subsec. (d)(1). Pub. L. 105–277, § 1404(a)(1), inserted “or 231” after “section 223”.
Subsecs. (e), (f). Pub. L. 105–277, § 1404(a)(2), redesignated subsecs. (d) and (e) as (e) and (f), respectively.