●Team Registration: In general, one club may register as many as five foreigners without restriction.
●Match Squad Registration: One team may feature up to three foreigners, as well as one player from an Asian Football Confederation (AFC) member nation, in their matchday squad.

However, there are no restrictions on the number of players from J.League Partner Nations who may be registered by a club or included in a matchday squad.

J.League Partner Nations (current as of December 2016)

Thailand, Vietnam, Myanmar, Cambodia, Singapore, Indonesia, Iran, Malaysia, Qatar