THE GENESIS OF SECURITIES REGULATION AND ITS MECHANISMS Modern securities regulation in a systematic and sophisticated form began in the US in 1933 with the passing of the Securities Act,which established an elaborate federal system of regulation of public offerings of securities,in other words,of the primary market.In the following year the Securities THE GENESIS OF SECURITIES REGULATION AND ITS MECHANISMS Modern securities regulation in a systematic and sophisticated form began in the US in 1933 with the passing of the Securities Act, which established an elaborate federal system of regulation of public offerings of securities, in other words, of the primary market. the following year the Securities