§ 209-a. Relations with other states and the dominion of Canada. 1. Whenever a volunteer fire company or department of this state shall answer a call for assistance from any political subdivision or territory of another state of the United States, or of the Dominion of Canada, or property ceded to the federal government, the provisions of section two hundred five of this chapter and the provisions of the workers' compensation law shall apply with respect to the volunteer firefighters of such fire company or department, while such assistance is being rendered or while going to or returning from the place from whence such call came, to the same extent and in the same manner as if such service had been rendered in the area regularly served by such volunteer firefighters; provided, however, that there shall be deducted from any amounts payable under such section or such law, any amounts recoverable by or payable to such volunteer firefighters under the laws applicable in the political subdivision or territory from whence the call for assistance came.

2. The provisions of sections two hundred five and two hundred nine of this chapter shall apply with respect to volunteer firefighters, fire departments and companies of other states of the United States and of the Dominion of Canada that render service in this state in answer to a call for assistance, provided that the laws of the state served by such volunteer firefighters, fire departments or companies, or of the Dominion of Canada, as the case may be, contain provisions under which substantially similar benefits are granted to volunteer firefighters, fire departments and companies of this state when rendering service in such other states, or the Dominion of Canada, as the case may be, in answer to a call for assistance, and provided further that there shall be deducted from any amounts payable under the provisions of section two hundred five of this article to volunteer firefighters of such other states or of the Dominion of Canada, any amounts recoverable by or payable to such volunteer firefighters under the laws of the state served by such volunteer firefighters or of the Dominion of Canada, as the case may be.

3. The provisions of this section shall not apply where a volunteer firefighter of this state, or of another state, or of the Dominion of Canada, as the case may be, is killed or injured, on or after the first day of March, nineteen hundred fifty-seven, or dies from the effects of injuries received on or after such date.