I'm trying to figure out what kind of notches (if any) are allowed in steel studs used for non-load bearing walls (for a finished room in a basement). IRC 2009 section 603 indicates that no notches are allowed in the flange or lips:
R603.3.4 Cutting and notching. Flanges and lips of cold-formed steel studs and headers shall not be cut or notched.
However, that entire section appears to only address load bearing walls:
R603.1.1 Applicability limits. The provisions of this section shall control the construction of exterior cold-formed steel wall framing and interior load-bearing cold-formed steel wall framing
Thus, I can't seem to find any rules or guidelines for non load-bearing walls (unless I am misinterpreting it). Does any such rule or guideline exist?