LOUISVILLE, Ky. (WDRB) -- Jefferson County Public Schools teachers have until Sept. 9 to decide whether they are in support of the two-year salary agreement reached between the district and the Jefferson County Teachers Association on Aug. 18.

DeeAnn Flaherty, executive director of JCTA, said the union mailed out 5,900 ballots to the home addresses of its members on Friday and that the ballots must be delivered to the JCTA office or postmarked by Sept. 9 in order for their vote to count.

Under the agreement, teachers would continue receiving their experience-based step raises on top of a 2.25 percent raise over the next two years. The salary and step increases would be retroactive to July 1, 2016, if ratified by the union membership and then approved by the Jefferson County Board of Education. 

The tentative agreement between the two sides came after months of negotiations and tension between the two groups and would give teachers a .75 percent raise this year and a 1.5 percent raise in 2017-18.

It also includes several other provisions, including changes to the district's transfer policy and a 60 percent reimbursement for teachers to cover the cost of seeking National Board Certification as long as they agree to teach in JCPS for four years and changes to the district's transfer policy. 

To see the full details of the negotiated agreement, click here.

Flaherty said in order for the tentative agreement to pass, at least 50 percent (plus one vote) of the ballots received must be in favor of it. 

If it is not ratified by JCTA members, union and district officials would have to go back to the bargaining board.

Only teachers who are members of JCTA are able to vote on the proposed agreement by either stating they are in favor of it, or that they are not in favor of it. There are about 300 teachers in JCPS who are not part of JCTA.

Not all teachers say they are in support of the agreement.

"I'm voting no because we are worth more than an insulting .75 percent," Tim Burri, a JCPS elementary school teacher, said in a tweet on Monday.

The district is still negotiating with its other unions such as the Teamsters and the American Federation of State, County and Municipal Employees (AFSCME) to reach agreements on wages with them.

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