According JAR, TOGA is certified for use for a maximum of 10 minutes in case of an engine failure at take off. On the other hand ,and as far as I know, FAR only allows 5 minutes in the same scenario.
Not totally correct, FAA permits 10 minutes in the same scenario. Manufacturers offer it either as standard (Embraer) or at a cost (Boeing/Douglas), although if its new aircraft purchase, this additional cost usually doesnt apply.
We operate 5 aircraft types under FAR121 with 10 minutes.
Mutt