Even though federal securities law is well-settled, most states have additional securities laws, known as "Blue Sky" laws. California securities law is regulated and enforced by the Department of Financial Protection and Innovation (DFPI), which was formerly known as the Department of Business Oversight.
The California Securities Law of 1968 is the main law governing securities in California. It requires all sales of securities in California to be registered with the Department of Financial Protection and Innovation (formerly the Department of Business Oversight), and it sets many regulations and requirements with the purpose of protecting consumers from securities fraud and deception. Public access to the law is linked above, and it can also be found on Lexis and Westlaw.
Other relevant state securities laws can be found in Title 4 (Securities) of the California Corporations Code. Public access to the Title is linked above, and it can also be found on Lexis and Westlaw.
Most California securities regulations can be found in Title 10, Chapter 3, Subchapter 2 (Corporate Securities) of the California Code of Regulations. Public access to the Subchapter is linked above, and it can also be found on Lexis and Westlaw.
Many other states (currently 21) have enacted the Uniform Securities Act of 2002. This uniform Act provides basic regulations to protect investors and consumers against securities fraud. It also provides that all securities sales be registered with the relevant state department. Public access to the Act is linked above, and it can also be found on Westlaw.
Westlaw has a 50 State Survey on State Statutory Requirements for Registration of Securities. They also have a 50 State Survey on Securities Anti-Fraud Provisions and a general 50 State Regulatory Survey on Blue Sky Laws.
Lexis has a 50 State Survey on Securities Advertising.