WEST GREENWICH — The rank and file of the 210-member Exeter-West Greenwich Education yesterday ratified a four-year labor package comprising a one-year contract retroactive to last Aug. 31 and a three-year pact that would expire in August 2011, a spokesman for the teachers union announced.

John Leidecker, lawyer for the union’s parent organization, National Education Association Rhode Island, declined to provide details of the agreement, pending a School Committee ratification vote scheduled for Tuesday.

Leidecker said the teachers voted at the end of a three-hour session in NEARI’s offices in Cranston. He said he did not know the tally and would not characterize it beyond saying, “The majority prevailed. … We are halfway there.”

Maureen Pontarelli, president of the union, did not return calls seeking comment.

School Committee lawyer Vincent Ragosta said he was “very happy to hear the teachers have ratified” and that he would present the details of the tentative agreement to the full board when it meets Tuesday evening. The teachers are scheduled to report to schools for orientation that morning, and classes are set to begin on Wednesday.

The negotiating teams achieved the tentative accord on Sunday afternoon, in their 42nd bargaining session. The last contract expired in August 2007.

lsparks@projo.com