The book serves mainly to unify some of the universal tenets of Satanic thought, and is not (by and large) considered to be a rigid Satanic doctrinal code. Rather, it is LaVey's personal philosophical foundation which makes up his personal ideology of "Satanism".
Note: Most people who practice Satanism as described in LaVey's Satanic Bible don't see it as "worshipping Satan" as many people tend to think, but more of a religion based upon knowledge, philosophy, insight and self deification.
The Satanic Chapel originally the East L.A. Church of Satan claims to have been founded on the night of Halloween in 1999, though its current popularity can only be traced to the publication of The Unholy Bible in 2000.
The Satanic Chapel was established by Anthony Gonzales and certain members of the priesthood of the Church of Satan, who left because of administrative and philosophical disagreements with its founder, and, as Gonzales claims, because he was disgusted at the corruption within the Church of Satan.
The Satanic Chapel also strongly supports law, but in the name of freedom if a law is unjust, a man is not only right to disobey it, he is obligated to do so, as famously quoted by Thomas Jefferson.
Quoting The SatanicBible to legitimate a point of argument is not confined to representatives of the Church of Satan.
References to The SatanicBible in police seminars in combination with the apparent evidence of a connection between The SatanicBible and crime in a few cases like Baker and Ramirez contributed to a number of unfortunate miscarriages of justice, such as the conviction of a young man in the Robin Hood Hills murders.
Modern Satanism is a loose, decentralized movement that coheres as a distinct religious community largely by virtue of participants adherence to the thought of Anton LaVey, especially as expressed in The SatanicBible.