On the “big scope” issue, Delta and the union will try to reach individually tailored production accords on the pilot share of flying in any future joint venture (JV), such as the one Delta already has with Air France-KLM and Alitalia for sharing revenue and coordinating schedules across the Atlantic. But if management and the union cannot reach consensus on any particular joint venture, Delta’s share of revenue block hours flown will be at least 75% of the airline’s share of revenue.

“This makes sure that Delta has ‘skin in the game,’ that Delta must be an active operator in the JV, and the block hours it operates must be proportional to the revenue it derives from the JV,” says a union official.

In another notable provision, the tentative contract would require Delta to remove six seats from the 76-seat aircraft being operated by its regional partners if the carrier furloughs any mainline pilots currently on the seniority list—and forbid the carrier from reinstalling the seats until all the furloughed pilots have been offered recall. There are no “force majeure” provisions that would let Delta change this requirement, ALPA says.

Delta is declining comment on the tentative deal. The pilots union members will vote on the tentative agreement later this month.