I assume the expert has furnished a report of some kind that states something to the effect that the expert report complies with the code that you are referring to? If that is the case you would be able to put your various contentions to the witness without needing to tender the code itself. A great lecture on cross-examination is available on Youtube, it is called the Ten Commandments of Cross-Examination by Irving Younger. I'd suggest you watch that, gives some great practical tips.