http://www.arb.ca.gov/msprog/aftermkt/replace.htmThe ref is there to help but i don't think you can just call and talk to him/her you have to make an appointment. What I did years ago was I made an appointment before I did the engine swap took my car in and then he tested it & passed it and said WTF? Then i drilled him with all my questions about the upcoming swap. He wasn't happy but he gave me all the info i needed. You have to have a vehicle to get the appt. you cant just walk in.