Pub. L. 118-31, div. A, tit. VI, subtit. B, sec. 615
DETERMINATION OF COLD WEATHER LOCATION FOR PURPOSES OF SPECIAL DUTY PAY.
SEC. 615. DETERMINATION OF COLD WEATHER LOCATION FOR PURPOSES OF SPECIAL DUTY PAY. For purposes of special duty pay under section 352 of title 37, United States Code, the Secretary concerned shall determine that a duty station is a cold weather location if, at such duty station, the temperature is expected to drop below -20 °F according 137 STAT. 293 to the 2012 Plant Hardiness Zone Map published by the Agricultural Research Service of the Department of Agriculture.