...There are
two circumstances in which an ICAO restriction must be
added to an applicant’s ATP certificate:

A. The first circumstance requiring an ICAO restric-
tion is when the applicant uses SIC or FE time to meet
the 1,500 total pilot hour requirement. The restriction is
required when the total of the applicant’s PIC time (see
paragraph 55A, first bullet) and 50 percent of the SIC
time (see paragraph 55A, third bullet) does not exceed
1,200 hours. In this case, the restriction placed on the
certificate must be, “Holder does not meet the pilot
flight experience requirements of ICAO.” The following
is an example of how to compute whether this restriction
is required:

B. The second circumstance requiring an ICAO
restriction is when an applicant has less than 150 actual
PIC hours. In this case, the restriction placed on the cer-
tificate must be, “Holder does not meet the PIC flight
experience requirement of ICAO.”...