Notch/holes for engineered I joists

It is my understanding that the chords cannot be modified for this type of floor joist. What about the web?

I found the answer:

http://www.anthonyforest.com/userguidepowerjoist.pdf

It depends on many variables but, with the two notches in the one span, I think not:

http://www.ilevel.com/literature/TB-806.pdf

and…

http://www.ilevel.com/literature/TJ-4000.pdf (page 11, etc.)

**[FONT=MyriadDomtar2002-Bold]Cutting the Holes
[/FONT][FONT=MyriadDomtar2002-Bold][size=5][FONT=MyriadDomtar2002-Bold][size=5]• **[/size][/FONT][/size][/FONT][FONT=StoneSerif][size=1]Never drill, cut or notch the flange, or over-cut the web.
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