Answer:
Standard California Smog Fee of $8.25 plus the dealer may not charge more than an additional $50.
From www.bar.ca.gov on 2/9/2010:
How much does a Smog Check cost?
Smog Check prices vary in different areas. Prices for Smog Checks are not regulated, so you are encouraged to shop around. For a list of stations in your area, visit the search page or call (800)952-5210.