47 C.F.R. §73.3571
For purposes of paragraph (h)(1)(ii) of this section, §73.182(k) interference standards apply when determining nighttime mutual exclusivity between applications to provide AM service that are filed in the same window. Two applications would be deemed to be mutually exclusive if either application would be subject to dismissal because it would enter into, i.e. , raise, the twenty-five percent exclusion RSS nighttime limit of the other.