Separate return year.

Separate return year. The term separate return year means a taxable year of a corporation for which it files a separate return or for which it joins in the filing of a consolidated return by another group.
The termseparate return yearmeans a taxable year of a corporation for which it files a separate return or for which it joins in the filing of a consolidated return by another group.

Source

26 CFR § 1.1502-1


Scoping language

None
Is this correct? or