That can be true for specials but third party developers in the U.S., of which there are two, must develop to public RNP AR criteria. They cannot account for OEI, unlike in some other countries.
I think you know better than that. Alaska Airlines, and Naverus procedures in AK and PSP are designed with EO missed.
Do you think that PSP, and all the procedures in AK, and CA are designed without EO? There is the weight limited RNP DEP for Burbank.
There are RNP DEP in the US....what public criteria details DEP?
Alaska Airlines, Naverus, and Jepp all are certified as 3rd party designers, and all have significant exemptions to the criteria to do this.
There are what, about 3 third party developed PUBLIC RNP procedures in the US, and those were all required by the FAA to cert the developer, and I dont think any of those are in use.