I have read over the proposed changes to Section N1103.3.3 (R403.3.3)

Surprisingly it appears that all reference to duct tightness limits has been crossed out and not added back in at any place. Surely the test must still have a limit by which a pass/fail can be established. 

I also wonder at the vagueness that allows contractors to do their own testing as long as “The contractor shall have been trained on the equipment used to perform the test.”   Will there be clarity on what that training  requirement will be?