And this:
If FAA recognizes foreign flight time as logable in Part 61:
(j)
Aircraft requirements for logging flight time. For a person to log flight time, the time must be acquired in an aircraft that is identified as an aircraft under § 61.5(b), and is -
(1) An aircraft of U.S. registry with either a standard or special airworthiness certificate;
(2) An aircraft of foreign registry with an airworthiness certificate that is approved by the aviation authority of a foreign country that is a Member State to the Convention on International Civil Aviation Organization;
...AND...
c)Logging of pilot time.
The pilot time described in this section may be used to:
(1)
Apply for a certificate or rating issued under this part or a privilege authorized under this part; or(2) Satisfy the recent flight experience requirements of this part.
https://www.law.cornell.edu/cfr/text/14/61.51
Why can't foreign PICUS flight time be applied toward the 250 hour PIC requirement for an FAA ATP ?