SECTION 1. Notwithstanding any general or special law to the contrary, not less than $500,000 of any of the unexpended and unencumbered balances of appropriations on June 30, 2014, shall be made available to municipalities and school districts, including regional school districts, in the form of fifty percent matching grants administered by the office of emergency medical services for the purchase of automated external defibrillators for use in schools, senior centers, or senior housing complexes, provided further, that grants may include matching funds for training in the use of such equipment and cardio-pulmonary resuscitation; and provided further, that local matching funds may be provided through the municipality or school district by local appropriation, or donations from non-profit organizations, or individual, corporate or foundation gifts.   Nothing contained herein shall limit the ability of said office to obtain the equipment through a bulk purchase arrangement to maximize the number of grants that may be made through these funds. Any funds distributed under this section shall be considered one-time grant funding, and shall in no way constitute a new and continuing funding source for cities and towns.