In New York State we are still using the 1999 code. The state has not adopted the 2002 code yet.

Question is? If I apply a new code change to a project, am I in violation...

Example: the 2002 code allows for romex in buildings of more than 3 stories, 1999 does not.

If I wire an apartment on the 4th. floor in romex am I creating a code violation.