Me. Stat. tit. 20-A § 13705
The requirements of this chapter apply to all school administrative units beginning in the 2017-2018 school year. In the 2014-2015 school year, each unit shall develop a system that meets the standards of this chapter, in collaboration with teachers, principals, administrators, school board members, parents and other members of the public. In the 2015-2016 school year, each unit shall operate as a pilot project the system developed in the 2014-2015 school year by applying it in one or more of the schools in the unit or by applying it without using results in any official manner or shall employ other means to provide information to enable the unit to adjust the system prior to the first year of full implementation. In the 2016-2017 school year, each unit shall operate as a pilot project the system developed in the 2014-2015 school year by applying it to all of the schools and applicable staff in the unit. At the end of the 2016-2017 school year, units may modify the system approved in the 2015-2016 school year. The modified system must meet the standards of this chapter. Nothing in this section prohibits a unit from fully implementing the system earlier than the 2017-2018 school year. [2015, c. 405, §1(AMD).]
20-A M.R.S. § 13705