A.
If this City is aided by any Fire Department of any other city or town in the commonwealth, and such city or town suffers damage to its property by rendering such aid, or lawfully makes payments to any member of its Fire Department, or to his widow or other dependents, on account of injuries or death suffered by him in the course of rendering aid, as described in this section, or of death resulting from such injuries, this City may compensate such other city or town rendering aid as described in this section.
B.
Compensation mentioned in this section shall be paid only after certification by the Chief of the City Fire Department that such damage to property was sustained or such death or injuries occurred while in the performance of the duty of rendering aid to the City when called upon under the provisions of law.