The Orange County Clerk Recorder allows you to search for business names that are registered, and you may also register with the site to submit a new Ficticious business name statements.
Business License - Registration
Is important to get the license registration to have your business according to each State regulation, here you can find the correct information on how to obtain the license in Orange County: http://www.cityoforange.org/business/default.asp
Each state has their own regulations, in here you can find the ones that belongs to Orange County municipal ordinance codes, zoning codes and State laws/regulations are now accessible online. Click on the topic to begin your search
County Ordinance Codes http://library.municode.com/index.aspx?clientId=11378
County Zoning Codes http://www.ocplanning.net/CodesRegulations.aspx
State Laws and Regulations http://www.ca.gov/About/Government/State/LawsAndRegs.html