You make the call : the FTC's telemarketing sales rule.

Bibliographic Details
Corporate Author:	United States. Federal Trade Commission. Division of Consumer and Business Education
Format:	Government Document eBook
Language:	English
Published:	[Washington, D.C.] : Federal Trade Commission, Bureau of Consumer Protection, Division of Consumer and Business Education, [2009]
Series:	FTC facts for consumers.
Subjects:	Telemarketing > Law and legislation > United States.
Online Access:	https://purl.fdlp.gov/GPO/gpo19131

Description
Item Description:	Title from title screen (viewed on Feb. 16, 2012). "September 2009." Electronic resource.
Physical Description:	1 online resource (4 unnumbered pages).