No, it's CL is an ANSI spec. The Hyperspec is the electronic version of the same spec and for all intents and purposes has become THE spec for all Lisp implementations, as JamesF said.
In fact, the story I heard, if you can believe it, was that ANSI lost
the electronic version of the actual ANSI spec. Supposedly, if you order the ANSI CL spec you'll end up with a photocopy of whatever master version they have. Suffice it to say that since the volume of CL specs ordered from ANSI is very small, this hasn't caused anybody any problems, particularly since the Hyperspec exists. The Hyperspec is the only electronic version of the CL spec that exists.
If you want something on paper, I recommend Bert Burgemeister's excellent Common Lisp Quick Reference
. Very handy, IMO.