Use the Danish coverage certification to assign foreign (F) quarters of coverage to
U.S. coverage record.
All QCs can be used based on the date agreement goes into effect.
There is no minimum amount of Danish coverage that must be earned before the U.S.
can use it.
All periods of coverage certified by Denmark are creditable unless they are:
Cash unemployment benefits (code 600)
Cash sickness benefits from municipality (code 610)