400 feet and certrification
Part 25(?): Engine out obstacle clearance is predicated upon climbing at V2 (or some approved variation of it) to 400 feet on runway center line extended without changing aircraft configuration except for retracting the gear.
It could be also noted here that obstacle clearance requires that the aircraft remain on runway centerline extended at least until the cleanup procedures are completed except where there are special engine out procedures for a particular airport.
I assume this is all still valid, but its been a while since I have been active.