NEWPORT — School officials and representatives of the Teachers Association of Newport were scheduled to hold another bargaining session yesterday, the second such meeting this week.

Supt. John Ambrogi said the meeting would begin at 3 p.m. but offered no other details about the focus of the talks or their progress. No other meetings were scheduled and he did not say whether more would be needed.

“I can’t predict anything,” he said.

The current three-year contract expires Sunday, with teachers scheduled to return to school Tuesday, the day after Labor Day. Students begin classes the following day. (The number of students on the last day of school in June was 2,228; no figures for the coming academic year are available yet.)

The current contract began requiring teachers to share in the cost of their health coverage. Their annual contribution now stands at 10 percent of the cost of their premiums.

The agreement also ended lifetime health coverage for teachers hired during and after the 2006-07 school year and anyone with fewer than 10 years of service in Newport schools. Teachers who retired after 2005 and remained in the lifetime-coverage plan now pay 15 percent of their premiums.

The “buyback” that teachers receive for not accepting health coverage is 50 percent of the premium, with a cap of $5,800.

Salary increases were 3.25 percent the first year and 3.75 last year and this year. The base salary this year for a top-scale teacher is $67,263, excluding additional pay for advanced coursework.

The last major labor unrest in Newport took place in 1995, when the union went on strike for seven days.