securities actglossary / SECURITIES ACT securities act. A federal or state law protecting the public by regulating the registration, offering, and trading of securities. See SECURITIES ACT OF1933; SECURITIES EXCHANGE ACT OF1934; BLUE-SKY LAW. 词条贡献者 资深译员Paloma,毕业于亚洲一流的翻译学院,擅长翻译各类与境外投资相关的法律文件。