historical_succession_access_single_heir_succession_law_trigger

historical_succession_access_single_heir_succession_law_trigger = {
	trigger_if = {
		limit = { government_has_mechanic = administrative }
		OR = {
			tgp_japan_single_heir_succession_override_trigger = yes
			tgp_korea_single_heir_succession_override_trigger = yes
			has_title = title:e_hindustan
			has_title = title:h_china
			AND = {
				is_independent_ruler = yes
				government_has_flag = government_is_steppe_admin
			}
		}
	}
	trigger_else = {
		OR = {
			has_title = title:k_austria
			is_roman_emperor_trigger = yes
			AND = {
				has_title = title:e_france
				is_target_in_global_variable_list = {
					name = unavailable_unique_decisions
					target = flag:flag_reformed_carolingian_empire
				}
			}
			has_title = title:e_hindustan
			has_title = title:h_china
			AND = {
				government_has_flag = government_is_japan_feudal
				is_independent_ruler = yes
			}
			#Add any subsequent exceptions here.
		}
	}
}

As written in game/common/scripted_triggers/00_succession_triggers.txt.