Complex sentence: Some rules of "kashrut" are not universally observed: the rule against eating "chadash" (new grain) before the 16th of the month Nisan; many hold that this rule does not apply outside the Land of Israel.
Split into simpler sentences: Some rules of "kashrut" are not universally observed. For example, many hold that the rule against eating "chadash" (new grain) before the 16th of the month Nisan does not apply outside the Land of Israel.