Are there different requirements for in vitro (IVF) embryos versus in vivo (ET) embryos?

Yes, depending on which country you have chosen for export.  For Canada, IVF and ET embryos, as of right now, do not have any testing requirements. But again, that is up to the USDA and Canada’s discretion to change the testing requirements as they see fit. Some countries require extra testing for IVF and some countries require extra testing for ET. Therefore, it is good to investigate testing requirements before the embryo creation process begins.